diff --git a/remix-debug/package-lock.json b/remix-debug/package-lock.json
index 1e2c539546..64be29e5f8 100644
--- a/remix-debug/package-lock.json
+++ b/remix-debug/package-lock.json
@@ -1549,6 +1549,27 @@
         "to-fast-properties": "^2.0.0"
       }
     },
+    "@sindresorhus/is": {
+      "version": "0.14.0",
+      "resolved": "https://registry.npmjs.org/@sindresorhus/is/-/is-0.14.0.tgz",
+      "integrity": "sha512-9NET910DNaIPngYnLLPeg+Ogzqsi9uM4mSboU5y6p8S5DzMTVEsJZrawi+BoDNUVBa2DhJqQYUFvMDfgU062LQ=="
+    },
+    "@szmarczak/http-timer": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@szmarczak/http-timer/-/http-timer-1.1.2.tgz",
+      "integrity": "sha512-XIB2XbzHTN6ieIjfIMV9hlVcfPU26s2vafYWQcZHWXHOxiaRZYEDKEwdl129Zyg50+foYV2jCgtrqSA6qNuNSA==",
+      "requires": {
+        "defer-to-connect": "^1.0.1"
+      }
+    },
+    "@types/bignumber.js": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/@types/bignumber.js/-/bignumber.js-5.0.0.tgz",
+      "integrity": "sha512-0DH7aPGCClywOFaxxjE6UwpN2kQYe9LwuDQMv+zYA97j5GkOMo8e66LYT+a8JYU7jfmUFRZLa9KycxHDsKXJCA==",
+      "requires": {
+        "bignumber.js": "*"
+      }
+    },
     "@types/bn.js": {
       "version": "4.11.5",
       "resolved": "https://registry.npmjs.org/@types/bn.js/-/bn.js-4.11.5.tgz",
@@ -1562,6 +1583,49 @@
       "resolved": "https://registry.npmjs.org/@types/node/-/node-12.12.14.tgz",
       "integrity": "sha512-u/SJDyXwuihpwjXy7hOOghagLEV1KdAST6syfnOk6QZAMzZuWZqXy5aYYZbh8Jdpd4escVFP0MvftHNDb9pruA=="
     },
+    "@web3-js/scrypt-shim": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/@web3-js/scrypt-shim/-/scrypt-shim-0.1.0.tgz",
+      "integrity": "sha512-ZtZeWCc/s0nMcdx/+rZwY1EcuRdemOK9ag21ty9UsHkFxsNb/AaoucUz0iPuyGe0Ku+PFuRmWZG7Z7462p9xPw==",
+      "requires": {
+        "scryptsy": "^2.1.0",
+        "semver": "^6.3.0"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "6.3.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw=="
+        }
+      }
+    },
+    "@web3-js/websocket": {
+      "version": "1.0.30",
+      "resolved": "https://registry.npmjs.org/@web3-js/websocket/-/websocket-1.0.30.tgz",
+      "integrity": "sha512-fDwrD47MiDrzcJdSeTLF75aCcxVVt8B1N74rA+vh2XCAvFy4tEWJjtnUtj2QG7/zlQ6g9cQ88bZFBxwd9/FmtA==",
+      "requires": {
+        "debug": "^2.2.0",
+        "es5-ext": "^0.10.50",
+        "nan": "^2.14.0",
+        "typedarray-to-buffer": "^3.1.5",
+        "yaeti": "^0.0.6"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "2.6.9",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+          "requires": {
+            "ms": "2.0.0"
+          }
+        },
+        "ms": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+        }
+      }
+    },
     "abstract-leveldown": {
       "version": "2.6.3",
       "resolved": "https://registry.npmjs.org/abstract-leveldown/-/abstract-leveldown-2.6.3.tgz",
@@ -1577,15 +1641,14 @@
         }
       }
     },
-    "acorn": {
-      "version": "5.7.3",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
-      "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw=="
-    },
-    "acorn-es7-plugin": {
-      "version": "1.1.7",
-      "resolved": "https://registry.npmjs.org/acorn-es7-plugin/-/acorn-es7-plugin-1.1.7.tgz",
-      "integrity": "sha1-8u4fMiipDurRJF+asZIusucdM2s="
+    "accepts": {
+      "version": "1.3.7",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
+      "integrity": "sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==",
+      "requires": {
+        "mime-types": "~2.1.24",
+        "negotiator": "0.6.2"
+      }
     },
     "acorn-jsx": {
       "version": "3.0.1",
@@ -1652,6 +1715,11 @@
       "integrity": "sha1-ZlWX3oap/+Oqm/vmyuXG6kJrSXk=",
       "dev": true
     },
+    "any-promise": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/any-promise/-/any-promise-1.3.0.tgz",
+      "integrity": "sha1-q8av7tzqUugJzcA3au0845Y10X8="
+    },
     "argparse": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
@@ -1661,6 +1729,34 @@
         "sprintf-js": "~1.0.2"
       }
     },
+    "array-flatten": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
+    },
+    "asn1": {
+      "version": "0.2.4",
+      "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
+      "integrity": "sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==",
+      "requires": {
+        "safer-buffer": "~2.1.0"
+      }
+    },
+    "asn1.js": {
+      "version": "4.10.1",
+      "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-4.10.1.tgz",
+      "integrity": "sha512-p32cOF5q0Zqs9uBiONKYLm6BClCoBCM5O9JfeUSlnQLBTxYdTK+pW+nXflm8UkKd2UYlEbYz5qEi0JuZR9ckSw==",
+      "requires": {
+        "bn.js": "^4.0.0",
+        "inherits": "^2.0.1",
+        "minimalistic-assert": "^1.0.0"
+      }
+    },
+    "assert-plus": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
+      "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU="
+    },
     "async": {
       "version": "2.6.3",
       "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
@@ -1677,6 +1773,26 @@
         "async": "^2.4.0"
       }
     },
+    "async-limiter": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.1.tgz",
+      "integrity": "sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ=="
+    },
+    "asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k="
+    },
+    "aws-sign2": {
+      "version": "0.7.0",
+      "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.7.0.tgz",
+      "integrity": "sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg="
+    },
+    "aws4": {
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.9.0.tgz",
+      "integrity": "sha512-Uvq6hVe90D0B2WEnUqtdgY1bATGz3mw33nH9Y+dmA+w5DHvUmBgkr5rM/KCHpCsiFNRUfokW/szpPPgMK2hm4A=="
+    },
     "babel-code-frame": {
       "version": "6.26.0",
       "resolved": "https://registry.npmjs.org/babel-code-frame/-/babel-code-frame-6.26.0.tgz",
@@ -1836,11 +1952,26 @@
     "balanced-match": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
+      "dev": true
+    },
+    "base64-js": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.3.1.tgz",
+      "integrity": "sha512-mLQ4i2QO1ytvGWFWmcngKO//JXAQueZvwEKtjgQFM4jIK0kU+ytMfplL8j+n5mspOfjHwoAg+9yhb7BwAHm36g=="
+    },
+    "bcrypt-pbkdf": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz",
+      "integrity": "sha1-pDAdOJtqQ/m2f/PKEaP2Y342Dp4=",
+      "requires": {
+        "tweetnacl": "^0.14.3"
+      }
     },
     "bignumber.js": {
-      "version": "git+https://github.com/frozeman/bignumber.js-nolookahead.git#57692b3ecfc98bbdd6b3a516cb2353652ea49934",
-      "from": "git+https://github.com/frozeman/bignumber.js-nolookahead.git"
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-9.0.0.tgz",
+      "integrity": "sha512-t/OYhhJ2SD+YGBQcjY8GzzDHEk9f3nerxjtfa6tlMXfe7frs/WozhvCNoGvpM0P3bNf3Gq5ZRMlGr5f3r4/N8A=="
     },
     "bindings": {
       "version": "1.5.0",
@@ -1858,15 +1989,62 @@
         "safe-buffer": "^5.0.1"
       }
     },
+    "bl": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/bl/-/bl-1.2.2.tgz",
+      "integrity": "sha512-e8tQYnZodmebYDWGH7KMRvtzKXaJHx3BbilrgZCfvyLUYdKpK1t5PSPmpkny/SgiTSCnjfLW7v5rlONXVFkQEA==",
+      "requires": {
+        "readable-stream": "^2.3.5",
+        "safe-buffer": "^5.1.1"
+      }
+    },
+    "bluebird": {
+      "version": "3.7.2",
+      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.7.2.tgz",
+      "integrity": "sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg=="
+    },
     "bn.js": {
       "version": "4.11.8",
       "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.8.tgz",
       "integrity": "sha512-ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA=="
     },
+    "body-parser": {
+      "version": "1.19.0",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
+      "integrity": "sha512-dhEPs72UPbDnAQJ9ZKMNTP6ptJaionhP5cBb541nXPlW60Jepo9RV/a4fX4XWW9CuFNK22krhrj1+rgzifNCsw==",
+      "requires": {
+        "bytes": "3.1.0",
+        "content-type": "~1.0.4",
+        "debug": "2.6.9",
+        "depd": "~1.1.2",
+        "http-errors": "1.7.2",
+        "iconv-lite": "0.4.24",
+        "on-finished": "~2.3.0",
+        "qs": "6.7.0",
+        "raw-body": "2.4.0",
+        "type-is": "~1.6.17"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "2.6.9",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+          "requires": {
+            "ms": "2.0.0"
+          }
+        },
+        "ms": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+        }
+      }
+    },
     "brace-expansion": {
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
       "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "dev": true,
       "requires": {
         "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
@@ -1890,6 +2068,36 @@
         "safe-buffer": "^5.0.1"
       }
     },
+    "browserify-cipher": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/browserify-cipher/-/browserify-cipher-1.0.1.tgz",
+      "integrity": "sha512-sPhkz0ARKbf4rRQt2hTpAHqn47X3llLkUGn+xEJzLjwY8LRs2p0v7ljvI5EyoRO/mexrNunNECisZs+gw2zz1w==",
+      "requires": {
+        "browserify-aes": "^1.0.4",
+        "browserify-des": "^1.0.0",
+        "evp_bytestokey": "^1.0.0"
+      }
+    },
+    "browserify-des": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/browserify-des/-/browserify-des-1.0.2.tgz",
+      "integrity": "sha512-BioO1xf3hFwz4kc6iBhI3ieDFompMhrMlnDFC4/0/vd5MokpuAc3R+LYbwTA9A5Yc9pq9UYPqffKpW2ObuwX5A==",
+      "requires": {
+        "cipher-base": "^1.0.1",
+        "des.js": "^1.0.0",
+        "inherits": "^2.0.1",
+        "safe-buffer": "^5.1.2"
+      }
+    },
+    "browserify-rsa": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/browserify-rsa/-/browserify-rsa-4.0.1.tgz",
+      "integrity": "sha1-IeCr+vbyApzy+vsTNWenAdQTVSQ=",
+      "requires": {
+        "bn.js": "^4.1.0",
+        "randombytes": "^2.0.1"
+      }
+    },
     "browserify-sha3": {
       "version": "0.0.4",
       "resolved": "https://registry.npmjs.org/browserify-sha3/-/browserify-sha3-0.0.4.tgz",
@@ -1899,6 +2107,20 @@
         "safe-buffer": "^5.1.1"
       }
     },
+    "browserify-sign": {
+      "version": "4.0.4",
+      "resolved": "https://registry.npmjs.org/browserify-sign/-/browserify-sign-4.0.4.tgz",
+      "integrity": "sha1-qk62jl17ZYuqa/alfmMMvXqT0pg=",
+      "requires": {
+        "bn.js": "^4.1.1",
+        "browserify-rsa": "^4.0.0",
+        "create-hash": "^1.1.0",
+        "create-hmac": "^1.1.2",
+        "elliptic": "^6.0.0",
+        "inherits": "^2.0.1",
+        "parse-asn1": "^5.0.0"
+      }
+    },
     "browserslist": {
       "version": "4.8.0",
       "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.8.0.tgz",
@@ -1910,12 +2132,50 @@
         "node-releases": "^1.1.41"
       }
     },
+    "buffer": {
+      "version": "5.4.3",
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.4.3.tgz",
+      "integrity": "sha512-zvj65TkFeIt3i6aj5bIvJDzjjQQGs4o/sNoezg1F1kYap9Nu2jcUdpwzRSJTHMMzG0H7bZkn4rNQpImhuxWX2A==",
+      "requires": {
+        "base64-js": "^1.0.2",
+        "ieee754": "^1.1.4"
+      }
+    },
+    "buffer-alloc": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/buffer-alloc/-/buffer-alloc-1.2.0.tgz",
+      "integrity": "sha512-CFsHQgjtW1UChdXgbyJGtnm+O/uLQeZdtbDo8mfUgYXCHSM1wgrVxXm6bSyrUuErEb+4sYVGCzASBRot7zyrow==",
+      "requires": {
+        "buffer-alloc-unsafe": "^1.1.0",
+        "buffer-fill": "^1.0.0"
+      }
+    },
+    "buffer-alloc-unsafe": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz",
+      "integrity": "sha512-TEM2iMIEQdJ2yjPJoSIsldnleVaAk1oW3DBVUykyOLsEsFmEc9kn+SFFPz+gl54KQNxlDnAwCXosOS9Okx2xAg=="
+    },
+    "buffer-crc32": {
+      "version": "0.2.13",
+      "resolved": "https://registry.npmjs.org/buffer-crc32/-/buffer-crc32-0.2.13.tgz",
+      "integrity": "sha1-DTM+PwDqxQqhRUq9MO+MKl2ackI="
+    },
+    "buffer-fill": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/buffer-fill/-/buffer-fill-1.0.0.tgz",
+      "integrity": "sha1-+PeLdniYiO858gXNY39o5wISKyw="
+    },
     "buffer-from": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
       "integrity": "sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==",
       "dev": true
     },
+    "buffer-to-arraybuffer": {
+      "version": "0.0.5",
+      "resolved": "https://registry.npmjs.org/buffer-to-arraybuffer/-/buffer-to-arraybuffer-0.0.5.tgz",
+      "integrity": "sha1-YGSkD6dutDxyOrqe+PbhIW0QURo="
+    },
     "buffer-xor": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/buffer-xor/-/buffer-xor-1.0.3.tgz",
@@ -1927,6 +2187,40 @@
       "integrity": "sha1-wgOpilsCkIIqk4anjtosvVvNsy8=",
       "dev": true
     },
+    "bytes": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.0.tgz",
+      "integrity": "sha512-zauLjrfCG+xvoyaqLoV8bLVXXNGC4JqlxFCutSDWA6fJrTo2ZuvLYTqZ7aHBLZSMOopbzwv8f+wZcVzfVTI2Dg=="
+    },
+    "cacheable-request": {
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/cacheable-request/-/cacheable-request-6.1.0.tgz",
+      "integrity": "sha512-Oj3cAGPCqOZX7Rz64Uny2GYAZNliQSqfbePrgAQ1wKAihYmCUnraBtJtKcGR4xz7wF+LoJC+ssFZvv5BgF9Igg==",
+      "requires": {
+        "clone-response": "^1.0.2",
+        "get-stream": "^5.1.0",
+        "http-cache-semantics": "^4.0.0",
+        "keyv": "^3.0.0",
+        "lowercase-keys": "^2.0.0",
+        "normalize-url": "^4.1.0",
+        "responselike": "^1.0.2"
+      },
+      "dependencies": {
+        "get-stream": {
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-5.1.0.tgz",
+          "integrity": "sha512-EXr1FOzrzTfGeL0gQdeFEvOMm2mzMOglyiOXSTpPC+iAjAKftbr3jpCMWynogwYnM+eSj9sHGc6wjIcDvYiygw==",
+          "requires": {
+            "pump": "^3.0.0"
+          }
+        },
+        "lowercase-keys": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/lowercase-keys/-/lowercase-keys-2.0.0.tgz",
+          "integrity": "sha512-tqNXrS78oMOE73NMxK4EMLQsQowWf8jKooH9g7xPavRT706R6bkQJ6DY2Te7QukaZsulxa30wQ7bk0pm4XiHmA=="
+        }
+      }
+    },
     "caller-path": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/caller-path/-/caller-path-0.1.0.tgz",
@@ -1958,6 +2252,11 @@
         "redeyed": "~2.1.0"
       }
     },
+    "caseless": {
+      "version": "0.12.0",
+      "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
+      "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw="
+    },
     "chalk": {
       "version": "2.4.2",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
@@ -1977,6 +2276,11 @@
         "functional-red-black-tree": "^1.0.1"
       }
     },
+    "chownr": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/chownr/-/chownr-1.1.3.tgz",
+      "integrity": "sha512-i70fVHhmV3DtTl6nqvZOnIjbY0Pe4kAUjwHj8z0zAdgBtYrJyYwLKCCuRBQ5ppkyL0AkN7HKRnETdmdp1zqNXw=="
+    },
     "cipher-base": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/cipher-base/-/cipher-base-1.0.4.tgz",
@@ -2032,6 +2336,14 @@
       "integrity": "sha1-2jCcwmPfFZlMaIypAheco8fNfH4=",
       "dev": true
     },
+    "clone-response": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/clone-response/-/clone-response-1.0.2.tgz",
+      "integrity": "sha1-0dyXOSAxTfZ/vrlCI7TuNQI56Ws=",
+      "requires": {
+        "mimic-response": "^1.0.0"
+      }
+    },
     "co": {
       "version": "4.6.0",
       "resolved": "https://registry.npmjs.org/co/-/co-4.6.0.tgz",
@@ -2065,10 +2377,19 @@
       "integrity": "sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs=",
       "dev": true
     },
+    "combined-stream": {
+      "version": "1.0.8",
+      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
+      "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
+      "requires": {
+        "delayed-stream": "~1.0.0"
+      }
+    },
     "command-exists": {
       "version": "1.2.8",
       "resolved": "https://registry.npmjs.org/command-exists/-/command-exists-1.2.8.tgz",
-      "integrity": "sha512-PM54PkseWbiiD/mMsbvW351/u+dafwTJ0ye2qB60G1aGQP9j3xK2gmMDc+R34L3nDtx4qMCitXT75mkbkGJDLw=="
+      "integrity": "sha512-PM54PkseWbiiD/mMsbvW351/u+dafwTJ0ye2qB60G1aGQP9j3xK2gmMDc+R34L3nDtx4qMCitXT75mkbkGJDLw==",
+      "dev": true
     },
     "commander": {
       "version": "2.20.3",
@@ -2078,7 +2399,8 @@
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
+      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
+      "dev": true
     },
     "concat-stream": {
       "version": "1.6.2",
@@ -2092,6 +2414,26 @@
         "typedarray": "^0.0.6"
       }
     },
+    "content-disposition": {
+      "version": "0.5.3",
+      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.3.tgz",
+      "integrity": "sha512-ExO0774ikEObIAEV9kDo50o+79VCUdEB6n6lzKgGwupcVeRlhrj3qGAfwq8G6uBJjkqLrhT0qEYFcWng8z1z0g==",
+      "requires": {
+        "safe-buffer": "5.1.2"
+      },
+      "dependencies": {
+        "safe-buffer": {
+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+        }
+      }
+    },
+    "content-type": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.4.tgz",
+      "integrity": "sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA=="
+    },
     "convert-source-map": {
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-1.7.0.tgz",
@@ -2109,6 +2451,21 @@
         }
       }
     },
+    "cookie": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.4.0.tgz",
+      "integrity": "sha512-+Hp8fLp57wnUSt0tY0tHEXh4voZRDnoIrZPqlo3DPiI4y9lwg/jqx+1Om94/W6ZaPDOUbnjOt/99w66zk+l1Xg=="
+    },
+    "cookie-signature": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
+      "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw="
+    },
+    "cookiejar": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/cookiejar/-/cookiejar-2.1.2.tgz",
+      "integrity": "sha512-Mw+adcfzPxcPeI+0WlvRrr/3lGVO0bD75SxX6811cxSh1Wbxx7xZBGK1eVtDf6si8rg2lhnUjsVLMFMfbRIuwA=="
+    },
     "core-js": {
       "version": "2.6.10",
       "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.6.10.tgz",
@@ -2143,6 +2500,24 @@
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
+    "cors": {
+      "version": "2.8.5",
+      "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz",
+      "integrity": "sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==",
+      "requires": {
+        "object-assign": "^4",
+        "vary": "^1"
+      }
+    },
+    "create-ecdh": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/create-ecdh/-/create-ecdh-4.0.3.tgz",
+      "integrity": "sha512-GbEHQPMOswGpKXM9kCWVrremUcBmjteUaQ01T9rkKCPDXfUHX0IoP9LpHYo2NPFampa4e+/pFDc3jQdxrxQLaw==",
+      "requires": {
+        "bn.js": "^4.1.0",
+        "elliptic": "^6.0.0"
+      }
+    },
     "create-hash": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/create-hash/-/create-hash-1.2.0.tgz",
@@ -2168,21 +2543,41 @@
         "sha.js": "^2.4.8"
       }
     },
-    "crypto-js": {
-      "version": "3.1.8",
-      "resolved": "https://registry.npmjs.org/crypto-js/-/crypto-js-3.1.8.tgz",
-      "integrity": "sha1-cV8HC/YBTyrpkqmLOSkli3E/CNU="
+    "crypto-browserify": {
+      "version": "3.12.0",
+      "resolved": "https://registry.npmjs.org/crypto-browserify/-/crypto-browserify-3.12.0.tgz",
+      "integrity": "sha512-fz4spIh+znjO2VjL+IdhEpRJ3YN6sMzITSBijk6FK2UvTqruSQW+/cCZTSNsMiZNvUeq0CqurF+dAbyiGOY6Wg==",
+      "requires": {
+        "browserify-cipher": "^1.0.0",
+        "browserify-sign": "^4.0.0",
+        "create-ecdh": "^4.0.0",
+        "create-hash": "^1.1.0",
+        "create-hmac": "^1.1.0",
+        "diffie-hellman": "^5.0.0",
+        "inherits": "^2.0.1",
+        "pbkdf2": "^3.0.3",
+        "public-encrypt": "^4.0.0",
+        "randombytes": "^2.0.0",
+        "randomfill": "^1.0.3"
+      }
     },
     "d": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/d/-/d-1.0.1.tgz",
       "integrity": "sha512-m62ShEObQ39CfralilEQRjH6oAMtNCV1xJyEx5LpRYUVN+EviphDgUc/F3hnYbADmkiNs67Y+3ylmlG7Lnu+FA==",
-      "dev": true,
       "requires": {
         "es5-ext": "^0.10.50",
         "type": "^1.0.1"
       }
     },
+    "dashdash": {
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
+      "integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
+      "requires": {
+        "assert-plus": "^1.0.0"
+      }
+    },
     "debug": {
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
@@ -2198,6 +2593,100 @@
       "integrity": "sha1-IwdjLUwEOCuN+KMvcLiVBG1SdF8=",
       "dev": true
     },
+    "decode-uri-component": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/decode-uri-component/-/decode-uri-component-0.2.0.tgz",
+      "integrity": "sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU="
+    },
+    "decompress": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/decompress/-/decompress-4.2.0.tgz",
+      "integrity": "sha1-eu3YVCflqS2s/lVnSnxQXpbQH50=",
+      "requires": {
+        "decompress-tar": "^4.0.0",
+        "decompress-tarbz2": "^4.0.0",
+        "decompress-targz": "^4.0.0",
+        "decompress-unzip": "^4.0.1",
+        "graceful-fs": "^4.1.10",
+        "make-dir": "^1.0.0",
+        "pify": "^2.3.0",
+        "strip-dirs": "^2.0.0"
+      }
+    },
+    "decompress-response": {
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/decompress-response/-/decompress-response-3.3.0.tgz",
+      "integrity": "sha1-gKTdMjdIOEv6JICDYirt7Jgq3/M=",
+      "requires": {
+        "mimic-response": "^1.0.0"
+      }
+    },
+    "decompress-tar": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/decompress-tar/-/decompress-tar-4.1.1.tgz",
+      "integrity": "sha512-JdJMaCrGpB5fESVyxwpCx4Jdj2AagLmv3y58Qy4GE6HMVjWz1FeVQk1Ct4Kye7PftcdOo/7U7UKzYBJgqnGeUQ==",
+      "requires": {
+        "file-type": "^5.2.0",
+        "is-stream": "^1.1.0",
+        "tar-stream": "^1.5.2"
+      }
+    },
+    "decompress-tarbz2": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/decompress-tarbz2/-/decompress-tarbz2-4.1.1.tgz",
+      "integrity": "sha512-s88xLzf1r81ICXLAVQVzaN6ZmX4A6U4z2nMbOwobxkLoIIfjVMBg7TeguTUXkKeXni795B6y5rnvDw7rxhAq9A==",
+      "requires": {
+        "decompress-tar": "^4.1.0",
+        "file-type": "^6.1.0",
+        "is-stream": "^1.1.0",
+        "seek-bzip": "^1.0.5",
+        "unbzip2-stream": "^1.0.9"
+      },
+      "dependencies": {
+        "file-type": {
+          "version": "6.2.0",
+          "resolved": "https://registry.npmjs.org/file-type/-/file-type-6.2.0.tgz",
+          "integrity": "sha512-YPcTBDV+2Tm0VqjybVd32MHdlEGAtuxS3VAYsumFokDSMG+ROT5wawGlnHDoz7bfMcMDt9hxuXvXwoKUx2fkOg=="
+        }
+      }
+    },
+    "decompress-targz": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/decompress-targz/-/decompress-targz-4.1.1.tgz",
+      "integrity": "sha512-4z81Znfr6chWnRDNfFNqLwPvm4db3WuZkqV+UgXQzSngG3CEKdBkw5jrv3axjjL96glyiiKjsxJG3X6WBZwX3w==",
+      "requires": {
+        "decompress-tar": "^4.1.1",
+        "file-type": "^5.2.0",
+        "is-stream": "^1.1.0"
+      }
+    },
+    "decompress-unzip": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/decompress-unzip/-/decompress-unzip-4.0.1.tgz",
+      "integrity": "sha1-3qrM39FK6vhVePczroIQ+bSEj2k=",
+      "requires": {
+        "file-type": "^3.8.0",
+        "get-stream": "^2.2.0",
+        "pify": "^2.3.0",
+        "yauzl": "^2.4.2"
+      },
+      "dependencies": {
+        "file-type": {
+          "version": "3.9.0",
+          "resolved": "https://registry.npmjs.org/file-type/-/file-type-3.9.0.tgz",
+          "integrity": "sha1-JXoHg4TR24CHvESdEH1SpSZyuek="
+        },
+        "get-stream": {
+          "version": "2.3.1",
+          "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-2.3.1.tgz",
+          "integrity": "sha1-Xzj5PzRgCWZu4BUKBUFn+Rvdld4=",
+          "requires": {
+            "object-assign": "^4.0.1",
+            "pinkie-promise": "^2.0.0"
+          }
+        }
+      }
+    },
     "deep-equal": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/deep-equal/-/deep-equal-1.0.1.tgz",
@@ -2225,6 +2714,11 @@
         "clone": "^1.0.2"
       }
     },
+    "defer-to-connect": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/defer-to-connect/-/defer-to-connect-1.1.1.tgz",
+      "integrity": "sha512-J7thop4u3mRTkYRQ+Vpfwy2G5Ehoy82I14+14W4YMDLKdWloI9gSzRbV30s/NckQGVJtPkWNcW4oMAUigTdqiQ=="
+    },
     "deferred-leveldown": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/deferred-leveldown/-/deferred-leveldown-1.2.2.tgz",
@@ -2277,6 +2771,40 @@
         }
       }
     },
+    "delayed-stream": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+      "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk="
+    },
+    "depd": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/depd/-/depd-1.1.2.tgz",
+      "integrity": "sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak="
+    },
+    "des.js": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/des.js/-/des.js-1.0.1.tgz",
+      "integrity": "sha512-Q0I4pfFrv2VPd34/vfLrFOoRmlYj3OV50i7fskps1jZWK1kApMWWT9G6RRUeYedLcBDIhnSDaUvJMb3AhUlaEA==",
+      "requires": {
+        "inherits": "^2.0.1",
+        "minimalistic-assert": "^1.0.0"
+      }
+    },
+    "destroy": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.0.4.tgz",
+      "integrity": "sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA="
+    },
+    "diffie-hellman": {
+      "version": "5.0.3",
+      "resolved": "https://registry.npmjs.org/diffie-hellman/-/diffie-hellman-5.0.3.tgz",
+      "integrity": "sha512-kqag/Nl+f3GwyK25fhUMYj81BUOrZ9IuJsjIcDE5icNM9FJHAVm3VcUDxdLPoQtTuUylWm6ZIknYJwwaPxsUzg==",
+      "requires": {
+        "bn.js": "^4.1.0",
+        "miller-rabin": "^4.0.0",
+        "randombytes": "^2.0.0"
+      }
+    },
     "doctrine": {
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-1.5.0.tgz",
@@ -2295,6 +2823,11 @@
         }
       }
     },
+    "dom-walk": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/dom-walk/-/dom-walk-0.1.1.tgz",
+      "integrity": "sha1-ZyIm3HTI95mtNTB9+TaroRrNYBg="
+    },
     "drbg.js": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/drbg.js/-/drbg.js-1.0.1.tgz",
@@ -2305,6 +2838,25 @@
         "create-hmac": "^1.1.4"
       }
     },
+    "duplexer3": {
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/duplexer3/-/duplexer3-0.1.4.tgz",
+      "integrity": "sha1-7gHdHKwO08vH/b6jfcCo8c4ALOI="
+    },
+    "ecc-jsbn": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz",
+      "integrity": "sha1-OoOpBOVDUyh4dMVkt1SThoSamMk=",
+      "requires": {
+        "jsbn": "~0.1.0",
+        "safer-buffer": "^2.1.0"
+      }
+    },
+    "ee-first": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
+      "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
+    },
     "electron-to-chromium": {
       "version": "1.3.322",
       "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.322.tgz",
@@ -2325,6 +2877,11 @@
         "minimalistic-crypto-utils": "^1.0.0"
       }
     },
+    "encodeurl": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
+      "integrity": "sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k="
+    },
     "encoding-down": {
       "version": "5.0.4",
       "resolved": "https://registry.npmjs.org/encoding-down/-/encoding-down-5.0.4.tgz",
@@ -2365,6 +2922,14 @@
         }
       }
     },
+    "end-of-stream": {
+      "version": "1.4.4",
+      "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.4.tgz",
+      "integrity": "sha512-+uw1inIHVPQoaVuHzRyXd21icM+cnt4CzD5rW+NC1wjOUSTOs+Te7FOv7AhN7vS9x/oIyhLP5PR1H+phQAHu5Q==",
+      "requires": {
+        "once": "^1.4.0"
+      }
+    },
     "errno": {
       "version": "0.1.7",
       "resolved": "https://registry.npmjs.org/errno/-/errno-0.1.7.tgz",
@@ -2411,7 +2976,6 @@
       "version": "0.10.53",
       "resolved": "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.53.tgz",
       "integrity": "sha512-Xs2Stw6NiNHWypzRTY1MtaG/uJlwCk8kH81920ma8mvN8Xq1gsfhZvpkImLQArw8AHnv8MT2I45J3c0R8slE+Q==",
-      "dev": true,
       "requires": {
         "es6-iterator": "~2.0.3",
         "es6-symbol": "~3.1.3",
@@ -2422,7 +2986,6 @@
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/es6-iterator/-/es6-iterator-2.0.3.tgz",
       "integrity": "sha1-p96IkUGgWpSwhUQDstCg+/qY87c=",
-      "dev": true,
       "requires": {
         "d": "1",
         "es5-ext": "^0.10.35",
@@ -2472,7 +3035,6 @@
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/es6-symbol/-/es6-symbol-3.1.3.tgz",
       "integrity": "sha512-NJ6Yn3FuDinBaBRWl/q5X/s4koRHBrgKAu+yGI6JCBeiu3qrcbJhwT2GeR/EXVfylRk8dpQVJoLEFhK+Mu31NA==",
-      "dev": true,
       "requires": {
         "d": "^1.0.1",
         "ext": "^1.1.2"
@@ -2490,6 +3052,11 @@
         "es6-symbol": "^3.1.1"
       }
     },
+    "escape-html": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
+      "integrity": "sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg="
+    },
     "escape-string-regexp": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
@@ -2681,10 +3248,44 @@
       "integrity": "sha512-kVscqXk4OCp68SZ0dkgEKVi6/8ij300KBWTJq32P/dYeWTSwK41WyTxalN1eRmA5Z9UU/LX9D7FWSmV9SAYx6g==",
       "dev": true
     },
-    "ethashjs": {
-      "version": "0.0.7",
-      "resolved": "https://registry.npmjs.org/ethashjs/-/ethashjs-0.0.7.tgz",
-      "integrity": "sha1-ML/kGWcmaQoMWdO4Jy5w1NDDS64=",
+    "etag": {
+      "version": "1.8.1",
+      "resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
+      "integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc="
+    },
+    "eth-ens-namehash": {
+      "version": "2.0.8",
+      "resolved": "https://registry.npmjs.org/eth-ens-namehash/-/eth-ens-namehash-2.0.8.tgz",
+      "integrity": "sha1-IprEbsqG1S4MmR58sq74P/D2i88=",
+      "requires": {
+        "idna-uts46-hx": "^2.3.1",
+        "js-sha3": "^0.5.7"
+      },
+      "dependencies": {
+        "js-sha3": {
+          "version": "0.5.7",
+          "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.5.7.tgz",
+          "integrity": "sha1-DU/9gALVMzqrr0oj7tL2N0yfKOc="
+        }
+      }
+    },
+    "eth-lib": {
+      "version": "0.1.29",
+      "resolved": "https://registry.npmjs.org/eth-lib/-/eth-lib-0.1.29.tgz",
+      "integrity": "sha512-bfttrr3/7gG4E02HoWTDUcDDslN003OlOoBxk9virpAZQ1ja/jDgwkWB8QfJF7ojuEowrqy+lzp9VcJG7/k5bQ==",
+      "requires": {
+        "bn.js": "^4.11.6",
+        "elliptic": "^6.4.0",
+        "nano-json-stream-parser": "^0.1.2",
+        "servify": "^0.1.12",
+        "ws": "^3.0.0",
+        "xhr-request-promise": "^0.1.2"
+      }
+    },
+    "ethashjs": {
+      "version": "0.0.7",
+      "resolved": "https://registry.npmjs.org/ethashjs/-/ethashjs-0.0.7.tgz",
+      "integrity": "sha1-ML/kGWcmaQoMWdO4Jy5w1NDDS64=",
       "requires": {
         "async": "^1.4.2",
         "buffer-xor": "^1.0.3",
@@ -2711,10 +3312,20 @@
         }
       }
     },
-    "ethereum-common": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/ethereum-common/-/ethereum-common-0.2.0.tgz",
-      "integrity": "sha512-XOnAR/3rntJgbCdGhqdaLIxDLWKLmsZOGhHdBKadEr6gEnJLH52k93Ou+TUdFaPN3hJc3isBZBal3U/XZ15abA=="
+    "ethereum-bloom-filters": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/ethereum-bloom-filters/-/ethereum-bloom-filters-1.0.6.tgz",
+      "integrity": "sha512-dE9CGNzgOOsdh7msZirvv8qjHtnHpvBlKe2647kM8v+yeF71IRso55jpojemvHV+jMjr48irPWxMRaHuOWzAFA==",
+      "requires": {
+        "js-sha3": "^0.8.0"
+      },
+      "dependencies": {
+        "js-sha3": {
+          "version": "0.8.0",
+          "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.8.0.tgz",
+          "integrity": "sha512-gF1cRrHhIzNfToc802P800N8PpXS+evLLXfsVpowqmAFR9uwbi89WvXg2QspOmXL8QL86J4T1EpFu+yUkwJY3Q=="
+        }
+      }
     },
     "ethereumjs-account": {
       "version": "3.0.0",
@@ -2886,35 +3497,19 @@
         }
       }
     },
-    "ethers": {
-      "version": "4.0.40",
-      "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.40.tgz",
-      "integrity": "sha512-MC9BtV7Hpq4dgFONEfanx9aU9GhhoWU270F+/wegHZXA7FR+2KXFdt36YIQYLmVY5ykUWswDxd+f9EVkIa7JOA==",
+    "ethjs-unit": {
+      "version": "0.1.6",
+      "resolved": "https://registry.npmjs.org/ethjs-unit/-/ethjs-unit-0.1.6.tgz",
+      "integrity": "sha1-xmWSHkduh7ziqdWIpv4EBbLEFpk=",
       "requires": {
-        "aes-js": "3.0.0",
-        "bn.js": "^4.4.0",
-        "elliptic": "6.5.2",
-        "hash.js": "1.1.3",
-        "js-sha3": "0.5.7",
-        "scrypt-js": "2.0.4",
-        "setimmediate": "1.0.4",
-        "uuid": "2.0.1",
-        "xmlhttprequest": "1.8.0"
+        "bn.js": "4.11.6",
+        "number-to-bn": "1.7.0"
       },
       "dependencies": {
-        "hash.js": {
-          "version": "1.1.3",
-          "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.1.3.tgz",
-          "integrity": "sha512-/UETyP0W22QILqS+6HowevwhEFJ3MBJnwTf75Qob9Wz9t0DPuisL8kW8YZMK62dHAKE1c1p+gY1TtOLY+USEHA==",
-          "requires": {
-            "inherits": "^2.0.3",
-            "minimalistic-assert": "^1.0.0"
-          }
-        },
-        "js-sha3": {
-          "version": "0.5.7",
-          "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.5.7.tgz",
-          "integrity": "sha1-DU/9gALVMzqrr0oj7tL2N0yfKOc="
+        "bn.js": {
+          "version": "4.11.6",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.6.tgz",
+          "integrity": "sha1-UzRK2xRhehP26N0s4okF0cC6MhU="
         }
       }
     },
@@ -2937,10 +3532,10 @@
         "es5-ext": "~0.10.14"
       }
     },
-    "events": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/events/-/events-3.0.0.tgz",
-      "integrity": "sha512-Dc381HFWJzEOhQ+d8pkNon++bk9h6cdAoAj4iE6Q4y6xgTzySWXlKn05/TVNpjnfRqi/X0EpJEJohPjNI3zpVA=="
+    "eventemitter3": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-3.1.2.tgz",
+      "integrity": "sha512-tvtQIeLVHjDkJYnzf2dgVMxfuSGJeM/7UCG17TT4EumTfNtF+0nebF/4zWOIkCreAbtNqhGEboB6BWrwqNaw4Q=="
     },
     "evp_bytestokey": {
       "version": "1.0.3",
@@ -2957,11 +3552,67 @@
       "integrity": "sha1-8FyiM7SMBdVP/wd2XfhQfpXAL/g=",
       "dev": true
     },
+    "express": {
+      "version": "4.17.1",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.17.1.tgz",
+      "integrity": "sha512-mHJ9O79RqluphRrcw2X/GTh3k9tVv8YcoyY4Kkh4WDMUYKRZUq0h1o0w2rrrxBqM7VoeUVqgb27xlEMXTnYt4g==",
+      "requires": {
+        "accepts": "~1.3.7",
+        "array-flatten": "1.1.1",
+        "body-parser": "1.19.0",
+        "content-disposition": "0.5.3",
+        "content-type": "~1.0.4",
+        "cookie": "0.4.0",
+        "cookie-signature": "1.0.6",
+        "debug": "2.6.9",
+        "depd": "~1.1.2",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
+        "finalhandler": "~1.1.2",
+        "fresh": "0.5.2",
+        "merge-descriptors": "1.0.1",
+        "methods": "~1.1.2",
+        "on-finished": "~2.3.0",
+        "parseurl": "~1.3.3",
+        "path-to-regexp": "0.1.7",
+        "proxy-addr": "~2.0.5",
+        "qs": "6.7.0",
+        "range-parser": "~1.2.1",
+        "safe-buffer": "5.1.2",
+        "send": "0.17.1",
+        "serve-static": "1.14.1",
+        "setprototypeof": "1.1.1",
+        "statuses": "~1.5.0",
+        "type-is": "~1.6.18",
+        "utils-merge": "1.0.1",
+        "vary": "~1.1.2"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "2.6.9",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+          "requires": {
+            "ms": "2.0.0"
+          }
+        },
+        "ms": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+        },
+        "safe-buffer": {
+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+        }
+      }
+    },
     "ext": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/ext/-/ext-1.4.0.tgz",
       "integrity": "sha512-Key5NIsUxdqKg3vIsdw9dSuXpPCQ297y6wBjL30edxwPgt2E44WcWBZey/ZvUc6sERLTxKdyCu4gZFmUbk1Q7A==",
-      "dev": true,
       "requires": {
         "type": "^2.0.0"
       },
@@ -2969,11 +3620,20 @@
         "type": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/type/-/type-2.0.0.tgz",
-          "integrity": "sha512-KBt58xCHry4Cejnc2ISQAF7QY+ORngsWfxezO68+12hKV6lQY8P/psIkcbjeHWn7MqcgciWJyCCevFMJdIXpow==",
-          "dev": true
+          "integrity": "sha512-KBt58xCHry4Cejnc2ISQAF7QY+ORngsWfxezO68+12hKV6lQY8P/psIkcbjeHWn7MqcgciWJyCCevFMJdIXpow=="
         }
       }
     },
+    "extend": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.2.tgz",
+      "integrity": "sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g=="
+    },
+    "extsprintf": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.3.0.tgz",
+      "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU="
+    },
     "fake-merkle-patricia-tree": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/fake-merkle-patricia-tree/-/fake-merkle-patricia-tree-1.0.1.tgz",
@@ -2982,14 +3642,15 @@
         "checkpoint-store": "^1.1.0"
       }
     },
-    "fast-async": {
-      "version": "6.3.8",
-      "resolved": "https://registry.npmjs.org/fast-async/-/fast-async-6.3.8.tgz",
-      "integrity": "sha512-TjlooyqrYm/gOXjD2UHNwfrWkvTbzU105Nk4bvcRTeRoL+wIeK6rqbqDg3CN9z5p37cE2iXhP6SxQFz8OVIaUg==",
-      "requires": {
-        "nodent-compiler": "^3.2.10",
-        "nodent-runtime": ">=3.2.1"
-      }
+    "fast-deep-equal": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz",
+      "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk="
+    },
+    "fast-json-stable-stringify": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz",
+      "integrity": "sha1-1RQsDK7msRifh9OnYREGT4bIu/I="
     },
     "fast-levenshtein": {
       "version": "2.0.6",
@@ -2997,6 +3658,14 @@
       "integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=",
       "dev": true
     },
+    "fd-slicer": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/fd-slicer/-/fd-slicer-1.1.0.tgz",
+      "integrity": "sha1-JcfInLH5B3+IkbvmHY85Dq4lbx4=",
+      "requires": {
+        "pend": "~1.2.0"
+      }
+    },
     "figures": {
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/figures/-/figures-1.7.0.tgz",
@@ -3017,11 +3686,45 @@
         "object-assign": "^4.0.1"
       }
     },
+    "file-type": {
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/file-type/-/file-type-5.2.0.tgz",
+      "integrity": "sha1-LdvqfHP/42No365J3DOMBYwritY="
+    },
     "file-uri-to-path": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz",
       "integrity": "sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw=="
     },
+    "finalhandler": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.2.tgz",
+      "integrity": "sha512-aAWcW57uxVNrQZqFXjITpW3sIUQmHGG3qSb9mUah9MgMC4NeWhNOlNjXEYq3HjRAvL6arUviZGGJsBg6z0zsWA==",
+      "requires": {
+        "debug": "2.6.9",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "on-finished": "~2.3.0",
+        "parseurl": "~1.3.3",
+        "statuses": "~1.5.0",
+        "unpipe": "~1.0.0"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "2.6.9",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+          "requires": {
+            "ms": "2.0.0"
+          }
+        },
+        "ms": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+        }
+      }
+    },
     "find-root": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/find-root/-/find-root-1.1.0.tgz",
@@ -3065,10 +3768,41 @@
         "is-callable": "^1.1.3"
       }
     },
+    "forever-agent": {
+      "version": "0.6.1",
+      "resolved": "https://registry.npmjs.org/forever-agent/-/forever-agent-0.6.1.tgz",
+      "integrity": "sha1-+8cfDEGt6zf5bFd60e1C2P2sypE="
+    },
+    "form-data": {
+      "version": "2.3.3",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-2.3.3.tgz",
+      "integrity": "sha512-1lLKB2Mu3aGP1Q/2eCOx0fNbRMe7XdwktwOruhfqqd0rIJWwN4Dh+E3hrPSlDCXnSR7UtZ1N38rVXm+6+MEhJQ==",
+      "requires": {
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.6",
+        "mime-types": "^2.1.12"
+      }
+    },
+    "forwarded": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.1.2.tgz",
+      "integrity": "sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ="
+    },
+    "fresh": {
+      "version": "0.5.2",
+      "resolved": "https://registry.npmjs.org/fresh/-/fresh-0.5.2.tgz",
+      "integrity": "sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac="
+    },
+    "fs-constants": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/fs-constants/-/fs-constants-1.0.0.tgz",
+      "integrity": "sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow=="
+    },
     "fs-extra": {
       "version": "0.30.0",
       "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-0.30.0.tgz",
       "integrity": "sha1-8jP/zAjU2n1DLapEl3aYnbHfk/A=",
+      "dev": true,
       "requires": {
         "graceful-fs": "^4.1.2",
         "jsonfile": "^2.1.0",
@@ -3077,10 +3811,19 @@
         "rimraf": "^2.2.8"
       }
     },
+    "fs-minipass": {
+      "version": "1.2.7",
+      "resolved": "https://registry.npmjs.org/fs-minipass/-/fs-minipass-1.2.7.tgz",
+      "integrity": "sha512-GWSSJGFy4e9GUeCcbIkED+bgAoFyj7XF1mV8rma3QW4NIqX9Kyx79N/PF61H5udOV3aY1IaMLs6pGbH71nlCTA==",
+      "requires": {
+        "minipass": "^2.6.0"
+      }
+    },
     "fs.realpath": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
-      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
+      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
+      "dev": true
     },
     "function-bind": {
       "version": "1.1.1",
@@ -3116,10 +3859,27 @@
       "integrity": "sha1-Ei4WFZHiH/TFJTAwVpPyDmOTo5g=",
       "dev": true
     },
+    "get-stream": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-4.1.0.tgz",
+      "integrity": "sha512-GMat4EJ5161kIy2HevLlr4luNjBgvmj413KaQA7jt4V8B4RDsfpHk7WQ9GVqfYyyx8OS/L66Kox+rJRNklLK7w==",
+      "requires": {
+        "pump": "^3.0.0"
+      }
+    },
+    "getpass": {
+      "version": "0.1.7",
+      "resolved": "https://registry.npmjs.org/getpass/-/getpass-0.1.7.tgz",
+      "integrity": "sha1-Xv+OPmhNVprkyysSgmBOi6YhSfo=",
+      "requires": {
+        "assert-plus": "^1.0.0"
+      }
+    },
     "glob": {
       "version": "7.1.6",
       "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
       "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
+      "dev": true,
       "requires": {
         "fs.realpath": "^1.0.0",
         "inflight": "^1.0.4",
@@ -3129,23 +3889,89 @@
         "path-is-absolute": "^1.0.0"
       }
     },
+    "global": {
+      "version": "4.3.2",
+      "resolved": "https://registry.npmjs.org/global/-/global-4.3.2.tgz",
+      "integrity": "sha1-52mJJopsdMOJCLEwWxD8DjlOnQ8=",
+      "requires": {
+        "min-document": "^2.19.0",
+        "process": "~0.5.1"
+      },
+      "dependencies": {
+        "process": {
+          "version": "0.5.2",
+          "resolved": "https://registry.npmjs.org/process/-/process-0.5.2.tgz",
+          "integrity": "sha1-FjjYqONML0QKkduVq5rrZ3/Bhc8="
+        }
+      }
+    },
     "globals": {
       "version": "11.12.0",
       "resolved": "https://registry.npmjs.org/globals/-/globals-11.12.0.tgz",
       "integrity": "sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA==",
       "dev": true
     },
+    "got": {
+      "version": "9.6.0",
+      "resolved": "https://registry.npmjs.org/got/-/got-9.6.0.tgz",
+      "integrity": "sha512-R7eWptXuGYxwijs0eV+v3o6+XH1IqVK8dJOEecQfTmkncw9AV4dcw/Dhxi8MdlqPthxxpZyizMzyg8RTmEsG+Q==",
+      "requires": {
+        "@sindresorhus/is": "^0.14.0",
+        "@szmarczak/http-timer": "^1.1.2",
+        "cacheable-request": "^6.0.0",
+        "decompress-response": "^3.3.0",
+        "duplexer3": "^0.1.4",
+        "get-stream": "^4.1.0",
+        "lowercase-keys": "^1.0.1",
+        "mimic-response": "^1.0.1",
+        "p-cancelable": "^1.0.0",
+        "to-readable-stream": "^1.0.0",
+        "url-parse-lax": "^3.0.0"
+      }
+    },
     "graceful-fs": {
       "version": "4.2.3",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.3.tgz",
       "integrity": "sha512-a30VEBm4PEdx1dRB7MFK7BejejvCvBronbLjht+sHuGYj8PHs7M/5Z+rt5lw551vZ7yfTCj4Vuyy3mSJytDWRQ=="
     },
+    "graceful-readlink": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/graceful-readlink/-/graceful-readlink-1.0.1.tgz",
+      "integrity": "sha1-TK+tdrxi8C+gObL5Tpo906ORpyU="
+    },
     "growly": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/growly/-/growly-1.3.0.tgz",
       "integrity": "sha1-8QdIy+dq+WS3yWyTxrzCivEgwIE=",
       "dev": true
     },
+    "har-schema": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/har-schema/-/har-schema-2.0.0.tgz",
+      "integrity": "sha1-qUwiJOvKwEeCoNkDVSHyRzW37JI="
+    },
+    "har-validator": {
+      "version": "5.1.3",
+      "resolved": "https://registry.npmjs.org/har-validator/-/har-validator-5.1.3.tgz",
+      "integrity": "sha512-sNvOCzEQNr/qrvJgc3UG/kD4QtlHycrzwS+6mfTrrSq97BvaYcPZZI1ZSqGSPR73Cxn4LKTD4PttRwfU7jWq5g==",
+      "requires": {
+        "ajv": "^6.5.5",
+        "har-schema": "^2.0.0"
+      },
+      "dependencies": {
+        "ajv": {
+          "version": "6.10.2",
+          "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.2.tgz",
+          "integrity": "sha512-TXtUUEYHuaTEbLZWIKUr5pmBuhDLy+8KYtPYdcV8qC+pOZL+NKqYwvWSRrVXHn+ZmRRAu8vJTAznH7Oag6RVRw==",
+          "requires": {
+            "fast-deep-equal": "^2.0.1",
+            "fast-json-stable-stringify": "^2.0.0",
+            "json-schema-traverse": "^0.4.1",
+            "uri-js": "^4.2.2"
+          }
+        }
+      }
+    },
     "has": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
@@ -3169,11 +3995,24 @@
       "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
       "dev": true
     },
+    "has-symbol-support-x": {
+      "version": "1.4.2",
+      "resolved": "https://registry.npmjs.org/has-symbol-support-x/-/has-symbol-support-x-1.4.2.tgz",
+      "integrity": "sha512-3ToOva++HaW+eCpgqZrCfN51IPB+7bJNVT6CUATzueB5Heb8o6Nam0V3HG5dlDvZU1Gn5QLcbahiKw/XVk5JJw=="
+    },
     "has-symbols": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.0.1.tgz",
       "integrity": "sha512-PLcsoqu++dmEIZB+6totNFKq/7Do+Z0u4oT0zKOJNl3lYK6vGwwu2hjHs+68OEZbTjiUE9bgOABXbP/GvrS0Kg=="
     },
+    "has-to-string-tag-x": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/has-to-string-tag-x/-/has-to-string-tag-x-1.4.1.tgz",
+      "integrity": "sha512-vdbKfmw+3LoOYVr+mtxHaX5a96+0f3DljYd8JOqvOLsf5mw2Otda2qCDT9qRqLAhrjyQ0h7ual5nOiASpsGNFw==",
+      "requires": {
+        "has-symbol-support-x": "^1.4.1"
+      }
+    },
     "hash-base": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/hash-base/-/hash-base-3.0.4.tgz",
@@ -3202,6 +4041,73 @@
         "minimalistic-crypto-utils": "^1.0.1"
       }
     },
+    "http-cache-semantics": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/http-cache-semantics/-/http-cache-semantics-4.0.3.tgz",
+      "integrity": "sha512-TcIMG3qeVLgDr1TEd2XvHaTnMPwYQUQMIBLy+5pLSDKYFc7UIqj39w8EGzZkaxoLv/l2K8HaI0t5AVA+YYgUew=="
+    },
+    "http-errors": {
+      "version": "1.7.2",
+      "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.7.2.tgz",
+      "integrity": "sha512-uUQBt3H/cSIVfch6i1EuPNy/YsRSOUBXTVfZ+yR7Zjez3qjBz6i9+i4zjNaoqcoFVI4lQJ5plg63TvGfRSDCRg==",
+      "requires": {
+        "depd": "~1.1.2",
+        "inherits": "2.0.3",
+        "setprototypeof": "1.1.1",
+        "statuses": ">= 1.5.0 < 2",
+        "toidentifier": "1.0.0"
+      },
+      "dependencies": {
+        "inherits": {
+          "version": "2.0.3",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
+          "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4="
+        }
+      }
+    },
+    "http-https": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/http-https/-/http-https-1.0.0.tgz",
+      "integrity": "sha1-L5CN1fHbQGjAWM1ubUzjkskTOJs="
+    },
+    "http-signature": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/http-signature/-/http-signature-1.2.0.tgz",
+      "integrity": "sha1-muzZJRFHcvPZW2WmCruPfBj7rOE=",
+      "requires": {
+        "assert-plus": "^1.0.0",
+        "jsprim": "^1.2.2",
+        "sshpk": "^1.7.0"
+      }
+    },
+    "iconv-lite": {
+      "version": "0.4.24",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
+      "integrity": "sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==",
+      "requires": {
+        "safer-buffer": ">= 2.1.2 < 3"
+      }
+    },
+    "idna-uts46-hx": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/idna-uts46-hx/-/idna-uts46-hx-2.3.1.tgz",
+      "integrity": "sha512-PWoF9Keq6laYdIRwwCdhTPl60xRqAloYNMQLiyUnG42VjT53oW07BXIRM+NK7eQjzXjAk2gUvX9caRxlnF9TAA==",
+      "requires": {
+        "punycode": "2.1.0"
+      },
+      "dependencies": {
+        "punycode": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.0.tgz",
+          "integrity": "sha1-X4Y+3Im5bbCQdLrXlHvwkFbKTn0="
+        }
+      }
+    },
+    "ieee754": {
+      "version": "1.1.13",
+      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.13.tgz",
+      "integrity": "sha512-4vf7I2LYV/HaWerSo3XmlMkp5eZ83i+/CDluXi/IGTs/O1sejBNhTtnxzmRZfvOUqj7lZjqHkeTvpgSFDlWZTg=="
+    },
     "ignore": {
       "version": "3.3.10",
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-3.3.10.tgz",
@@ -3223,6 +4129,7 @@
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
       "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
+      "dev": true,
       "requires": {
         "once": "^1.3.0",
         "wrappy": "1"
@@ -3302,6 +4209,11 @@
         "loose-envify": "^1.0.0"
       }
     },
+    "ipaddr.js": {
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.0.tgz",
+      "integrity": "sha512-M4Sjn6N/+O6/IXSJseKqHoFc+5FdGJ22sXqnjTpdZweHK64MzEPAyQZyEU3R/KRv2GLoa7nNtg/C2Ev6m7z+eA=="
+    },
     "is-callable": {
       "version": "1.1.4",
       "resolved": "https://registry.npmjs.org/is-callable/-/is-callable-1.1.4.tgz",
@@ -3321,6 +4233,11 @@
         "number-is-nan": "^1.0.0"
       }
     },
+    "is-function": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/is-function/-/is-function-1.0.1.tgz",
+      "integrity": "sha1-Es+5i2W1fdPRk6MSH19uL0N2ArU="
+    },
     "is-hex-prefixed": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/is-hex-prefixed/-/is-hex-prefixed-1.0.0.tgz",
@@ -3353,6 +4270,21 @@
         }
       }
     },
+    "is-natural-number": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/is-natural-number/-/is-natural-number-4.0.1.tgz",
+      "integrity": "sha1-q5124dtM7VHjXeDHLr7PCfc0zeg="
+    },
+    "is-object": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/is-object/-/is-object-1.0.1.tgz",
+      "integrity": "sha1-iVJojF7C/9awPsyF52ngKQMINHA="
+    },
+    "is-plain-obj": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/is-plain-obj/-/is-plain-obj-1.1.0.tgz",
+      "integrity": "sha1-caUMhCnfync8kqOQpKA7OfzVHT4="
+    },
     "is-property": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/is-property/-/is-property-1.0.2.tgz",
@@ -3373,6 +4305,16 @@
       "integrity": "sha512-qgDYXFSR5WvEfuS5dMj6oTMEbrrSaM0CrFk2Yiq/gXnBvD9pMa2jGXxyhGLfvhZpuMZe18CJpFxAt3CRs42NMg==",
       "dev": true
     },
+    "is-retry-allowed": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/is-retry-allowed/-/is-retry-allowed-1.2.0.tgz",
+      "integrity": "sha512-RUbUeKwvm3XG2VYamhJL1xFktgjvPzL0Hq8C+6yrWIswDy3BIXGqCxhxkc30N9jqK311gVU137K8Ei55/zVJRg=="
+    },
+    "is-stream": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/is-stream/-/is-stream-1.1.0.tgz",
+      "integrity": "sha1-EtSj3U5o4Lec6428hBc66A2RykQ="
+    },
     "is-symbol": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/is-symbol/-/is-symbol-1.0.3.tgz",
@@ -3381,6 +4323,11 @@
         "has-symbols": "^1.0.1"
       }
     },
+    "is-typedarray": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/is-typedarray/-/is-typedarray-1.0.0.tgz",
+      "integrity": "sha1-5HnICFjfDBsR3dppQPlgEfzaSpo="
+    },
     "isarray": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
@@ -3392,6 +4339,20 @@
       "integrity": "sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=",
       "dev": true
     },
+    "isstream": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/isstream/-/isstream-0.1.2.tgz",
+      "integrity": "sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo="
+    },
+    "isurl": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/isurl/-/isurl-1.0.0.tgz",
+      "integrity": "sha512-1P/yWsxPlDtn7QeRD+ULKQPaIaN6yF368GZ2vDfv0AL0NwpStafjWCDDdn0k8wgFMWpVAqG7oJhxHnlud42i9w==",
+      "requires": {
+        "has-to-string-tag-x": "^1.2.0",
+        "is-object": "^1.0.1"
+      }
+    },
     "js-levenshtein": {
       "version": "1.1.6",
       "resolved": "https://registry.npmjs.org/js-levenshtein/-/js-levenshtein-1.1.6.tgz",
@@ -3419,12 +4380,32 @@
         "esprima": "^4.0.0"
       }
     },
+    "jsbn": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/jsbn/-/jsbn-0.1.1.tgz",
+      "integrity": "sha1-peZUwuWi3rXyAdls77yoDA7y9RM="
+    },
     "jsesc": {
       "version": "2.5.2",
       "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-2.5.2.tgz",
       "integrity": "sha512-OYu7XEzjkCQ3C5Ps3QIZsQfNpqoJyZZA99wd9aWd05NCtC5pWOkShK2mkL6HXQR6/Cy2lbNdPlZBpuQHXE63gA==",
       "dev": true
     },
+    "json-buffer": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/json-buffer/-/json-buffer-3.0.0.tgz",
+      "integrity": "sha1-Wx85evx11ne96Lz8Dkfh+aPZqJg="
+    },
+    "json-schema": {
+      "version": "0.2.3",
+      "resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.2.3.tgz",
+      "integrity": "sha1-tIDIkuWaLwWVTOcnvT8qTogvnhM="
+    },
+    "json-schema-traverse": {
+      "version": "0.4.1",
+      "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz",
+      "integrity": "sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg=="
+    },
     "json-stable-stringify": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz",
@@ -3434,6 +4415,11 @@
         "jsonify": "~0.0.0"
       }
     },
+    "json-stringify-safe": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz",
+      "integrity": "sha1-Epai1Y/UXxmg9s4B1lcB4sc1tus="
+    },
     "json5": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/json5/-/json5-2.1.1.tgz",
@@ -3447,6 +4433,7 @@
       "version": "2.4.0",
       "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-2.4.0.tgz",
       "integrity": "sha1-NzaitCi4e72gzIO1P6PWM6NcKug=",
+      "dev": true,
       "requires": {
         "graceful-fs": "^4.1.6"
       }
@@ -3463,6 +4450,17 @@
       "integrity": "sha1-T9kss04OnbPInIYi7PUfm5eMbLk=",
       "dev": true
     },
+    "jsprim": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz",
+      "integrity": "sha1-MT5mvB5cwG5Di8G3SZwuXFastqI=",
+      "requires": {
+        "assert-plus": "1.0.0",
+        "extsprintf": "1.3.0",
+        "json-schema": "0.2.3",
+        "verror": "1.10.0"
+      }
+    },
     "jsx-ast-utils": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/jsx-ast-utils/-/jsx-ast-utils-1.4.1.tgz",
@@ -3489,10 +4487,19 @@
         "sha3": "^1.2.2"
       }
     },
+    "keyv": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/keyv/-/keyv-3.1.0.tgz",
+      "integrity": "sha512-9ykJ/46SN/9KPM/sichzQ7OvXyGDYKGTaDlKMGCAlg2UK8KRy4jb0d8sFc+0Tt0YYnThq8X2RZgCg74RPxgcVA==",
+      "requires": {
+        "json-buffer": "3.0.0"
+      }
+    },
     "klaw": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/klaw/-/klaw-1.3.1.tgz",
       "integrity": "sha1-QIhDO0azsbolnXh4XY6W9zugJDk=",
+      "dev": true,
       "requires": {
         "graceful-fs": "^4.1.9"
       }
@@ -3809,6 +4816,11 @@
         "js-tokens": "^3.0.0 || ^4.0.0"
       }
     },
+    "lowercase-keys": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/lowercase-keys/-/lowercase-keys-1.0.1.tgz",
+      "integrity": "sha512-G2Lj61tXDnVFFOi8VZds+SoQjtQC3dgokKdDG2mTm1tx4m50NUHBOZSBwQQHyy0V12A0JTG4icfZQH+xPyh8VA=="
+    },
     "lru-cache": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-5.1.1.tgz",
@@ -3822,6 +4834,21 @@
       "resolved": "https://registry.npmjs.org/ltgt/-/ltgt-2.2.1.tgz",
       "integrity": "sha1-81ypHEk/e3PaDgdJUwTxezH4fuU="
     },
+    "make-dir": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-1.3.0.tgz",
+      "integrity": "sha512-2w31R7SJtieJJnQtGc7RVL2StM2vGYVfqUOvUDxH6bC6aJTxPxTF0GnIgCyu7tjockiUWAYQRbxa7vKn34s5sQ==",
+      "requires": {
+        "pify": "^3.0.0"
+      },
+      "dependencies": {
+        "pify": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
+          "integrity": "sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY="
+        }
+      }
+    },
     "marked": {
       "version": "0.7.0",
       "resolved": "https://registry.npmjs.org/marked/-/marked-0.7.0.tgz",
@@ -3852,6 +4879,11 @@
         "safe-buffer": "^5.1.2"
       }
     },
+    "media-typer": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
+      "integrity": "sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g="
+    },
     "memdown": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/memdown/-/memdown-1.4.1.tgz",
@@ -3888,7 +4920,13 @@
     "memorystream": {
       "version": "0.3.1",
       "resolved": "https://registry.npmjs.org/memorystream/-/memorystream-0.3.1.tgz",
-      "integrity": "sha1-htcJCzDORV1j+64S3aUaR93K+bI="
+      "integrity": "sha1-htcJCzDORV1j+64S3aUaR93K+bI=",
+      "dev": true
+    },
+    "merge-descriptors": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.1.tgz",
+      "integrity": "sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E="
     },
     "merkle-patricia-tree": {
       "version": "2.3.2",
@@ -3937,6 +4975,11 @@
         }
       }
     },
+    "methods": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/methods/-/methods-1.1.2.tgz",
+      "integrity": "sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4="
+    },
     "miller-rabin": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/miller-rabin/-/miller-rabin-4.0.1.tgz",
@@ -3946,6 +4989,37 @@
         "brorand": "^1.0.1"
       }
     },
+    "mime": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/mime/-/mime-1.6.0.tgz",
+      "integrity": "sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg=="
+    },
+    "mime-db": {
+      "version": "1.42.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.42.0.tgz",
+      "integrity": "sha512-UbfJCR4UAVRNgMpfImz05smAXK7+c+ZntjaA26ANtkXLlOe947Aag5zdIcKQULAiF9Cq4WxBi9jUs5zkA84bYQ=="
+    },
+    "mime-types": {
+      "version": "2.1.25",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.25.tgz",
+      "integrity": "sha512-5KhStqB5xpTAeGqKBAMgwaYMnQik7teQN4IAzC7npDv6kzeU6prfkR67bc87J1kWMPGkoaZSq1npmexMgkmEVg==",
+      "requires": {
+        "mime-db": "1.42.0"
+      }
+    },
+    "mimic-response": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/mimic-response/-/mimic-response-1.0.1.tgz",
+      "integrity": "sha512-j5EctnkH7amfV/q5Hgmoal1g2QHFJRraOtmx0JpIqkxhBhI/lJSl1nMpQ45hVarwNETOoWEimndZ4QK0RHxuxQ=="
+    },
+    "min-document": {
+      "version": "2.19.0",
+      "resolved": "https://registry.npmjs.org/min-document/-/min-document-2.19.0.tgz",
+      "integrity": "sha1-e9KC4/WELtKVu3SM3Z8f+iyCRoU=",
+      "requires": {
+        "dom-walk": "^0.1.0"
+      }
+    },
     "minimalistic-assert": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz",
@@ -3960,6 +5034,7 @@
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
       "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+      "dev": true,
       "requires": {
         "brace-expansion": "^1.1.7"
       }
@@ -3970,11 +5045,27 @@
       "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
       "dev": true
     },
+    "minipass": {
+      "version": "2.9.0",
+      "resolved": "https://registry.npmjs.org/minipass/-/minipass-2.9.0.tgz",
+      "integrity": "sha512-wxfUjg9WebH+CUDX/CdbRlh5SmfZiy/hpkxaRI16Y9W56Pa75sWgd/rvFilSgrauD9NyFymP/+JFV3KwzIsJeg==",
+      "requires": {
+        "safe-buffer": "^5.1.2",
+        "yallist": "^3.0.0"
+      }
+    },
+    "minizlib": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/minizlib/-/minizlib-1.3.3.tgz",
+      "integrity": "sha512-6ZYMOEnmVsdCeTJVE0W9ZD+pVnE8h9Hma/iOwwRDsdQoePpoX56/8B6z3P9VNwppJuBKNRuFDRNRqRWexT9G9Q==",
+      "requires": {
+        "minipass": "^2.9.0"
+      }
+    },
     "mkdirp": {
       "version": "0.5.1",
       "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
       "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
-      "dev": true,
       "requires": {
         "minimist": "0.0.8"
       },
@@ -3982,11 +5073,23 @@
         "minimist": {
           "version": "0.0.8",
           "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
-          "dev": true
+          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0="
         }
       }
     },
+    "mkdirp-promise": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/mkdirp-promise/-/mkdirp-promise-5.0.1.tgz",
+      "integrity": "sha1-6bj2jlUsaKnBcTuEiD96HdA5uKE=",
+      "requires": {
+        "mkdirp": "*"
+      }
+    },
+    "mock-fs": {
+      "version": "4.10.4",
+      "resolved": "https://registry.npmjs.org/mock-fs/-/mock-fs-4.10.4.tgz",
+      "integrity": "sha512-gDfZDLaPIvtOusbusLinfx6YSe2YpQsDT8qdP41P47dQ/NQggtkHukz7hwqgt8QvMBmAv+Z6DGmXPyb5BWX2nQ=="
+    },
     "ms": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
@@ -4013,11 +5116,20 @@
       "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.0.tgz",
       "integrity": "sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg=="
     },
-    "next-tick": {
+    "nano-json-stream-parser": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/nano-json-stream-parser/-/nano-json-stream-parser-0.1.2.tgz",
+      "integrity": "sha1-DMj20OK2IrR5xA1JnEbWS3Vcb18="
+    },
+    "negotiator": {
+      "version": "0.6.2",
+      "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.2.tgz",
+      "integrity": "sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw=="
+    },
+    "next-tick": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/next-tick/-/next-tick-1.0.0.tgz",
-      "integrity": "sha1-yobR/ogoFpsBICCOPchCS524NCw=",
-      "dev": true
+      "integrity": "sha1-yobR/ogoFpsBICCOPchCS524NCw="
     },
     "node-emoji": {
       "version": "1.10.0",
@@ -4060,26 +5172,10 @@
         }
       }
     },
-    "nodent-compiler": {
-      "version": "3.2.11",
-      "resolved": "https://registry.npmjs.org/nodent-compiler/-/nodent-compiler-3.2.11.tgz",
-      "integrity": "sha512-rfDrGWdgIJYomPUzR8nXiWNuIhJ7cVodPeZP3Ho65LEycuaX2uVNZ0ytpcfrmUKzdFeLRtye9+pHe8OynPZuPQ==",
-      "requires": {
-        "acorn": ">= 2.5.2 <= 5.7.3",
-        "acorn-es7-plugin": "^1.1.7",
-        "nodent-transform": "^3.2.9",
-        "source-map": "^0.5.7"
-      }
-    },
-    "nodent-runtime": {
-      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/nodent-runtime/-/nodent-runtime-3.2.1.tgz",
-      "integrity": "sha512-7Ws63oC+215smeKJQCxzrK21VFVlCFBkwl0MOObt0HOpVQXs3u483sAmtkF33nNqZ5rSOQjB76fgyPBmAUrtCA=="
-    },
-    "nodent-transform": {
-      "version": "3.2.9",
-      "resolved": "https://registry.npmjs.org/nodent-transform/-/nodent-transform-3.2.9.tgz",
-      "integrity": "sha512-4a5FH4WLi+daH/CGD5o/JWRR8W5tlCkd3nrDSkxbOzscJTyTUITltvOJeQjg3HJ1YgEuNyiPhQbvbtRjkQBByQ=="
+    "normalize-url": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/normalize-url/-/normalize-url-4.5.0.tgz",
+      "integrity": "sha512-2s47yzUxdexf1OhyRi4Em83iQk0aPvwTddtFz4hnSSw9dCEsLEGf6SwIO8ss/19S9iBb5sJaOuTvTGDeZI00BQ=="
     },
     "notify-error": {
       "version": "1.2.0",
@@ -4099,11 +5195,31 @@
       "integrity": "sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=",
       "dev": true
     },
+    "number-to-bn": {
+      "version": "1.7.0",
+      "resolved": "https://registry.npmjs.org/number-to-bn/-/number-to-bn-1.7.0.tgz",
+      "integrity": "sha1-uzYjWS9+X54AMLGXe9QaDFP+HqA=",
+      "requires": {
+        "bn.js": "4.11.6",
+        "strip-hex-prefix": "1.0.0"
+      },
+      "dependencies": {
+        "bn.js": {
+          "version": "4.11.6",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.6.tgz",
+          "integrity": "sha1-UzRK2xRhehP26N0s4okF0cC6MhU="
+        }
+      }
+    },
+    "oauth-sign": {
+      "version": "0.9.0",
+      "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.9.0.tgz",
+      "integrity": "sha512-fexhUFFPTGV8ybAtSIGbV6gOkSv8UtRbDBnAyLQw4QPKkgNlsH2ByPGtMUqdWkos6YCRmAqViwgZrJc/mRDzZQ=="
+    },
     "object-assign": {
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
-      "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM=",
-      "dev": true
+      "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM="
     },
     "object-inspect": {
       "version": "1.7.0",
@@ -4144,6 +5260,22 @@
         "es-abstract": "^1.5.1"
       }
     },
+    "oboe": {
+      "version": "2.1.4",
+      "resolved": "https://registry.npmjs.org/oboe/-/oboe-2.1.4.tgz",
+      "integrity": "sha1-IMiM2wwVNxuwQRklfU/dNLCqSfY=",
+      "requires": {
+        "http-https": "^1.0.0"
+      }
+    },
+    "on-finished": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",
+      "integrity": "sha1-IPEzZIGwg811M3mSoWlxqi2QaUc=",
+      "requires": {
+        "ee-first": "1.1.1"
+      }
+    },
     "once": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
@@ -4181,12 +5313,55 @@
     "os-tmpdir": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz",
-      "integrity": "sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ="
+      "integrity": "sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ=",
+      "dev": true
+    },
+    "p-cancelable": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/p-cancelable/-/p-cancelable-1.1.0.tgz",
+      "integrity": "sha512-s73XxOZ4zpt1edZYZzvhqFa6uvQc1vwUa0K0BdtIZgQMAJj9IbebH+JkgKZc9h+B05PKHLOTl4ajG1BmNrVZlw=="
+    },
+    "p-finally": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/p-finally/-/p-finally-1.0.0.tgz",
+      "integrity": "sha1-P7z7FbiZpEEjs0ttzBi3JDNqLK4="
+    },
+    "p-timeout": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/p-timeout/-/p-timeout-1.2.1.tgz",
+      "integrity": "sha1-XrOzU7f86Z8QGhA4iAuwVOu+o4Y=",
+      "requires": {
+        "p-finally": "^1.0.0"
+      }
+    },
+    "parse-asn1": {
+      "version": "5.1.5",
+      "resolved": "https://registry.npmjs.org/parse-asn1/-/parse-asn1-5.1.5.tgz",
+      "integrity": "sha512-jkMYn1dcJqF6d5CpU689bq7w/b5ALS9ROVSpQDPrZsqqesUJii9qutvoT5ltGedNXMO2e16YUWIghG9KxaViTQ==",
+      "requires": {
+        "asn1.js": "^4.0.0",
+        "browserify-aes": "^1.0.0",
+        "create-hash": "^1.1.0",
+        "evp_bytestokey": "^1.0.0",
+        "pbkdf2": "^3.0.3",
+        "safe-buffer": "^5.1.1"
+      }
+    },
+    "parse-headers": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/parse-headers/-/parse-headers-2.0.3.tgz",
+      "integrity": "sha512-QhhZ+DCCit2Coi2vmAKbq5RGTRcQUOE2+REgv8vdyu7MnYx2eZztegqtTx99TZ86GTIwqiy3+4nQTWZ2tgmdCA=="
+    },
+    "parseurl": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
+      "integrity": "sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ=="
     },
     "path-is-absolute": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
-      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18="
+      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
+      "dev": true
     },
     "path-is-inside": {
       "version": "1.0.2",
@@ -4200,6 +5375,51 @@
       "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==",
       "dev": true
     },
+    "path-to-regexp": {
+      "version": "0.1.7",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz",
+      "integrity": "sha1-32BBeABfUi8V60SQ5yR6G/qmf4w="
+    },
+    "pbkdf2": {
+      "version": "3.0.17",
+      "resolved": "https://registry.npmjs.org/pbkdf2/-/pbkdf2-3.0.17.tgz",
+      "integrity": "sha512-U/il5MsrZp7mGg3mSQfn742na2T+1/vHDCG5/iTI3X9MKUuYUZVLQhyRsg06mCgDBTd57TxzgZt7P+fYfjRLtA==",
+      "requires": {
+        "create-hash": "^1.1.2",
+        "create-hmac": "^1.1.4",
+        "ripemd160": "^2.0.1",
+        "safe-buffer": "^5.0.1",
+        "sha.js": "^2.4.8"
+      }
+    },
+    "pend": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/pend/-/pend-1.2.0.tgz",
+      "integrity": "sha1-elfrVQpng/kRUzH89GY9XI4AelA="
+    },
+    "performance-now": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-2.1.0.tgz",
+      "integrity": "sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns="
+    },
+    "pify": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+      "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw="
+    },
+    "pinkie": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/pinkie/-/pinkie-2.0.4.tgz",
+      "integrity": "sha1-clVrgM+g1IqXToDnckjoDtT3+HA="
+    },
+    "pinkie-promise": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/pinkie-promise/-/pinkie-promise-2.0.1.tgz",
+      "integrity": "sha1-ITXW36ejWMBprJsXh3YogihFD/o=",
+      "requires": {
+        "pinkie": "^2.0.0"
+      }
+    },
     "pkg-config": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/pkg-config/-/pkg-config-1.1.1.tgz",
@@ -4231,6 +5451,11 @@
       "integrity": "sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=",
       "dev": true
     },
+    "prepend-http": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/prepend-http/-/prepend-http-2.0.0.tgz",
+      "integrity": "sha1-6SQ0v6XqjBn0HN/UAddBo8gZ2Jc="
+    },
     "private": {
       "version": "0.1.8",
       "resolved": "https://registry.npmjs.org/private/-/private-0.1.8.tgz",
@@ -4254,11 +5479,100 @@
       "integrity": "sha1-4mDHj2Fhzdmw5WzD4Khd4Xx6V74=",
       "dev": true
     },
+    "proxy-addr": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.5.tgz",
+      "integrity": "sha512-t/7RxHXPH6cJtP0pRG6smSr9QJidhB+3kXu0KgXnbGYMgzEnUxRQ4/LDdfOwZEMyIh3/xHb8PX3t+lfL9z+YVQ==",
+      "requires": {
+        "forwarded": "~0.1.2",
+        "ipaddr.js": "1.9.0"
+      }
+    },
     "prr": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/prr/-/prr-1.0.1.tgz",
       "integrity": "sha1-0/wRS6BplaRexok/SEzrHXj19HY="
     },
+    "psl": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/psl/-/psl-1.6.0.tgz",
+      "integrity": "sha512-SYKKmVel98NCOYXpkwUqZqh0ahZeeKfmisiLIcEZdsb+WbLv02g/dI5BUmZnIyOe7RzZtLax81nnb2HbvC2tzA=="
+    },
+    "public-encrypt": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/public-encrypt/-/public-encrypt-4.0.3.tgz",
+      "integrity": "sha512-zVpa8oKZSz5bTMTFClc1fQOnyyEzpl5ozpi1B5YcvBrdohMjH2rfsBtyXcuNuwjsDIXmBYlF2N5FlJYhR29t8Q==",
+      "requires": {
+        "bn.js": "^4.1.0",
+        "browserify-rsa": "^4.0.0",
+        "create-hash": "^1.1.0",
+        "parse-asn1": "^5.0.0",
+        "randombytes": "^2.0.1",
+        "safe-buffer": "^5.1.2"
+      }
+    },
+    "pump": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.0.tgz",
+      "integrity": "sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==",
+      "requires": {
+        "end-of-stream": "^1.1.0",
+        "once": "^1.3.1"
+      }
+    },
+    "punycode": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
+      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A=="
+    },
+    "qs": {
+      "version": "6.7.0",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.7.0.tgz",
+      "integrity": "sha512-VCdBRNFTX1fyE7Nb6FYoURo/SPe62QCaAyzJvUjwRaIsc+NePBEniHlvxFmmX56+HZphIGtV0XeCirBtpDrTyQ=="
+    },
+    "query-string": {
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/query-string/-/query-string-5.1.1.tgz",
+      "integrity": "sha512-gjWOsm2SoGlgLEdAGt7a6slVOk9mGiXmPFMqrEhLQ68rhQuBnpfs3+EmlvqKyxnCo9/PPlF+9MtY02S1aFg+Jw==",
+      "requires": {
+        "decode-uri-component": "^0.2.0",
+        "object-assign": "^4.1.0",
+        "strict-uri-encode": "^1.0.0"
+      }
+    },
+    "randombytes": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.1.0.tgz",
+      "integrity": "sha512-vYl3iOX+4CKUWuxGi9Ukhie6fsqXqS9FE2Zaic4tNFD2N2QQaXOMFbuKK4QmDHC0JO6B1Zp41J0LpT0oR68amQ==",
+      "requires": {
+        "safe-buffer": "^5.1.0"
+      }
+    },
+    "randomfill": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/randomfill/-/randomfill-1.0.4.tgz",
+      "integrity": "sha512-87lcbR8+MhcWcUiQ+9e+Rwx8MyR2P7qnt15ynUlbm3TU/fjbgz4GsvfSUDTemtCCtVCqb4ZcEFlyPNTh9bBTLw==",
+      "requires": {
+        "randombytes": "^2.0.5",
+        "safe-buffer": "^5.1.0"
+      }
+    },
+    "range-parser": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.1.tgz",
+      "integrity": "sha512-Hrgsx+orqoygnmhFbKaHE6c296J+HTAQXoxEF6gNupROmmGJRoyzfG3ccAveqCBrwr/2yxQ5BVd/GTl5agOwSg=="
+    },
+    "raw-body": {
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.4.0.tgz",
+      "integrity": "sha512-4Oz8DUIwdvoa5qMJelxipzi/iJIi40O5cGV1wNYp5hvZP8ZN0T+jiNkL0QepXs+EsQ9XJ8ipEDoiH70ySUJP3Q==",
+      "requires": {
+        "bytes": "3.1.0",
+        "http-errors": "1.7.2",
+        "iconv-lite": "0.4.24",
+        "unpipe": "1.0.0"
+      }
+    },
     "rc": {
       "version": "1.2.8",
       "resolved": "https://registry.npmjs.org/rc/-/rc-1.2.8.tgz",
@@ -4392,252 +5706,50 @@
         }
       }
     },
-    "remix-lib": {
-      "version": "0.4.15",
-      "resolved": "https://registry.npmjs.org/remix-lib/-/remix-lib-0.4.15.tgz",
-      "integrity": "sha512-Q57izi9+doAtvhP0Tzgc0KYq/arUlNYWl48sPucidIm5eBA7NnQrTDth42+z+6YiIAHMxdIMUJe8bwptxydWow==",
-      "requires": {
-        "async": "^2.1.2",
-        "ethereumjs-block": "^1.6.0",
-        "ethereumjs-tx": "^1.3.3",
-        "ethereumjs-util": "^6.1.0",
-        "ethereumjs-vm": "3.0.0",
-        "ethers": "^4.0.27",
-        "events": "^3.0.0",
-        "fast-async": "^6.1.2",
-        "solc": "^0.5.0",
-        "web3": "0.20.6"
+    "request": {
+      "version": "2.88.0",
+      "resolved": "https://registry.npmjs.org/request/-/request-2.88.0.tgz",
+      "integrity": "sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==",
+      "requires": {
+        "aws-sign2": "~0.7.0",
+        "aws4": "^1.8.0",
+        "caseless": "~0.12.0",
+        "combined-stream": "~1.0.6",
+        "extend": "~3.0.2",
+        "forever-agent": "~0.6.1",
+        "form-data": "~2.3.2",
+        "har-validator": "~5.1.0",
+        "http-signature": "~1.2.0",
+        "is-typedarray": "~1.0.0",
+        "isstream": "~0.1.2",
+        "json-stringify-safe": "~5.0.1",
+        "mime-types": "~2.1.19",
+        "oauth-sign": "~0.9.0",
+        "performance-now": "^2.1.0",
+        "qs": "~6.5.2",
+        "safe-buffer": "^5.1.2",
+        "tough-cookie": "~2.4.3",
+        "tunnel-agent": "^0.6.0",
+        "uuid": "^3.3.2"
       },
       "dependencies": {
-        "ethereumjs-account": {
-          "version": "2.0.5",
-          "resolved": "https://registry.npmjs.org/ethereumjs-account/-/ethereumjs-account-2.0.5.tgz",
-          "integrity": "sha512-bgDojnXGjhMwo6eXQC0bY6UK2liSFUSMwwylOmQvZbSl/D7NXQ3+vrGO46ZeOgjGfxXmgIeVNDIiHw7fNZM4VA==",
-          "requires": {
-            "ethereumjs-util": "^5.0.0",
-            "rlp": "^2.0.0",
-            "safe-buffer": "^5.1.1"
-          },
-          "dependencies": {
-            "ethereumjs-util": {
-              "version": "5.2.0",
-              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
-              "integrity": "sha512-CJAKdI0wgMbQFLlLRtZKGcy/L6pzVRgelIZqRqNbuVFM3K9VEnyfbcvz0ncWMRNCe4kaHWjwRYQcYMucmwsnWA==",
-              "requires": {
-                "bn.js": "^4.11.0",
-                "create-hash": "^1.1.2",
-                "ethjs-util": "^0.1.3",
-                "keccak": "^1.0.2",
-                "rlp": "^2.0.0",
-                "safe-buffer": "^5.1.1",
-                "secp256k1": "^3.0.1"
-              }
-            }
-          }
+        "qs": {
+          "version": "6.5.2",
+          "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
+          "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA=="
         },
-        "ethereumjs-block": {
-          "version": "1.7.1",
-          "resolved": "https://registry.npmjs.org/ethereumjs-block/-/ethereumjs-block-1.7.1.tgz",
-          "integrity": "sha512-B+sSdtqm78fmKkBq78/QLKJbu/4Ts4P2KFISdgcuZUPDm9x+N7qgBPIIFUGbaakQh8bzuquiRVbdmvPKqbILRg==",
-          "requires": {
-            "async": "^2.0.1",
-            "ethereum-common": "0.2.0",
-            "ethereumjs-tx": "^1.2.2",
-            "ethereumjs-util": "^5.0.0",
-            "merkle-patricia-tree": "^2.1.2"
-          },
-          "dependencies": {
-            "ethereumjs-util": {
-              "version": "5.2.0",
-              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
-              "integrity": "sha512-CJAKdI0wgMbQFLlLRtZKGcy/L6pzVRgelIZqRqNbuVFM3K9VEnyfbcvz0ncWMRNCe4kaHWjwRYQcYMucmwsnWA==",
-              "requires": {
-                "bn.js": "^4.11.0",
-                "create-hash": "^1.1.2",
-                "ethjs-util": "^0.1.3",
-                "keccak": "^1.0.2",
-                "rlp": "^2.0.0",
-                "safe-buffer": "^5.1.1",
-                "secp256k1": "^3.0.1"
-              }
-            }
-          }
-        },
-        "ethereumjs-blockchain": {
-          "version": "3.4.0",
-          "resolved": "https://registry.npmjs.org/ethereumjs-blockchain/-/ethereumjs-blockchain-3.4.0.tgz",
-          "integrity": "sha512-wxPSmt6EQjhbywkFbftKcb0qRFIZWocHMuDa8/AB4eWL/UPYalNcDyLaxYbrDytmhHid3Uu8G/tA3C/TxZBuOQ==",
-          "requires": {
-            "async": "^2.6.1",
-            "ethashjs": "~0.0.7",
-            "ethereumjs-block": "~2.2.0",
-            "ethereumjs-common": "^1.1.0",
-            "ethereumjs-util": "~6.0.0",
-            "flow-stoplight": "^1.0.0",
-            "level-mem": "^3.0.1",
-            "lru-cache": "^5.1.1",
-            "safe-buffer": "^5.1.2",
-            "semaphore": "^1.1.0"
-          },
-          "dependencies": {
-            "ethereumjs-block": {
-              "version": "2.2.1",
-              "resolved": "https://registry.npmjs.org/ethereumjs-block/-/ethereumjs-block-2.2.1.tgz",
-              "integrity": "sha512-ze8I1844m5oKZL7hiHuezRcPzqdi4Iv0ssqQyuRaJ9Je0/YCYfXobJHvNLnex2ETgs5JypicdtLYrCNWdgcLvg==",
-              "requires": {
-                "async": "^2.0.1",
-                "ethereumjs-common": "^1.1.0",
-                "ethereumjs-tx": "^2.1.1",
-                "ethereumjs-util": "^5.0.0",
-                "merkle-patricia-tree": "^2.1.2"
-              },
-              "dependencies": {
-                "ethereumjs-util": {
-                  "version": "5.2.0",
-                  "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
-                  "integrity": "sha512-CJAKdI0wgMbQFLlLRtZKGcy/L6pzVRgelIZqRqNbuVFM3K9VEnyfbcvz0ncWMRNCe4kaHWjwRYQcYMucmwsnWA==",
-                  "requires": {
-                    "bn.js": "^4.11.0",
-                    "create-hash": "^1.1.2",
-                    "ethjs-util": "^0.1.3",
-                    "keccak": "^1.0.2",
-                    "rlp": "^2.0.0",
-                    "safe-buffer": "^5.1.1",
-                    "secp256k1": "^3.0.1"
-                  }
-                }
-              }
-            },
-            "ethereumjs-tx": {
-              "version": "2.1.1",
-              "resolved": "https://registry.npmjs.org/ethereumjs-tx/-/ethereumjs-tx-2.1.1.tgz",
-              "integrity": "sha512-QtVriNqowCFA19X9BCRPMgdVNJ0/gMBS91TQb1DfrhsbR748g4STwxZptFAwfqehMyrF8rDwB23w87PQwru0wA==",
-              "requires": {
-                "ethereumjs-common": "^1.3.1",
-                "ethereumjs-util": "^6.0.0"
-              }
-            },
-            "ethereumjs-util": {
-              "version": "6.0.0",
-              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.0.0.tgz",
-              "integrity": "sha512-E3yKUyl0Fs95nvTFQZe/ZSNcofhDzUsDlA5y2uoRmf1+Ec7gpGhNCsgKkZBRh7Br5op8mJcYF/jFbmjj909+nQ==",
-              "requires": {
-                "bn.js": "^4.11.0",
-                "create-hash": "^1.1.2",
-                "ethjs-util": "^0.1.6",
-                "keccak": "^1.0.2",
-                "rlp": "^2.0.0",
-                "safe-buffer": "^5.1.1",
-                "secp256k1": "^3.0.1"
-              }
-            }
-          }
-        },
-        "ethereumjs-tx": {
-          "version": "1.3.7",
-          "resolved": "https://registry.npmjs.org/ethereumjs-tx/-/ethereumjs-tx-1.3.7.tgz",
-          "integrity": "sha512-wvLMxzt1RPhAQ9Yi3/HKZTn0FZYpnsmQdbKYfUUpi4j1SEIcbkd9tndVjcPrufY3V7j2IebOpC00Zp2P/Ay2kA==",
-          "requires": {
-            "ethereum-common": "^0.0.18",
-            "ethereumjs-util": "^5.0.0"
-          },
-          "dependencies": {
-            "ethereum-common": {
-              "version": "0.0.18",
-              "resolved": "https://registry.npmjs.org/ethereum-common/-/ethereum-common-0.0.18.tgz",
-              "integrity": "sha1-L9w1dvIykDNYl26znaeDIT/5Uj8="
-            },
-            "ethereumjs-util": {
-              "version": "5.2.0",
-              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
-              "integrity": "sha512-CJAKdI0wgMbQFLlLRtZKGcy/L6pzVRgelIZqRqNbuVFM3K9VEnyfbcvz0ncWMRNCe4kaHWjwRYQcYMucmwsnWA==",
-              "requires": {
-                "bn.js": "^4.11.0",
-                "create-hash": "^1.1.2",
-                "ethjs-util": "^0.1.3",
-                "keccak": "^1.0.2",
-                "rlp": "^2.0.0",
-                "safe-buffer": "^5.1.1",
-                "secp256k1": "^3.0.1"
-              }
-            }
-          }
-        },
-        "ethereumjs-vm": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/ethereumjs-vm/-/ethereumjs-vm-3.0.0.tgz",
-          "integrity": "sha512-lNu+G/RWPRCrQM5s24MqgU75PEGiAhL4Ombw0ew6m08d+amsxf/vGAb98yDNdQqqHKV6JbwO/tCGfdqXGI6Cug==",
-          "requires": {
-            "async": "^2.1.2",
-            "async-eventemitter": "^0.2.2",
-            "ethereumjs-account": "^2.0.3",
-            "ethereumjs-block": "~2.2.0",
-            "ethereumjs-blockchain": "^3.4.0",
-            "ethereumjs-common": "^1.1.0",
-            "ethereumjs-util": "^6.0.0",
-            "fake-merkle-patricia-tree": "^1.0.1",
-            "functional-red-black-tree": "^1.0.1",
-            "merkle-patricia-tree": "^2.3.2",
-            "rustbn.js": "~0.2.0",
-            "safe-buffer": "^5.1.1"
-          },
-          "dependencies": {
-            "ethereumjs-block": {
-              "version": "2.2.1",
-              "resolved": "https://registry.npmjs.org/ethereumjs-block/-/ethereumjs-block-2.2.1.tgz",
-              "integrity": "sha512-ze8I1844m5oKZL7hiHuezRcPzqdi4Iv0ssqQyuRaJ9Je0/YCYfXobJHvNLnex2ETgs5JypicdtLYrCNWdgcLvg==",
-              "requires": {
-                "async": "^2.0.1",
-                "ethereumjs-common": "^1.1.0",
-                "ethereumjs-tx": "^2.1.1",
-                "ethereumjs-util": "^5.0.0",
-                "merkle-patricia-tree": "^2.1.2"
-              },
-              "dependencies": {
-                "ethereumjs-util": {
-                  "version": "5.2.0",
-                  "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
-                  "integrity": "sha512-CJAKdI0wgMbQFLlLRtZKGcy/L6pzVRgelIZqRqNbuVFM3K9VEnyfbcvz0ncWMRNCe4kaHWjwRYQcYMucmwsnWA==",
-                  "requires": {
-                    "bn.js": "^4.11.0",
-                    "create-hash": "^1.1.2",
-                    "ethjs-util": "^0.1.3",
-                    "keccak": "^1.0.2",
-                    "rlp": "^2.0.0",
-                    "safe-buffer": "^5.1.1",
-                    "secp256k1": "^3.0.1"
-                  }
-                }
-              }
-            },
-            "ethereumjs-tx": {
-              "version": "2.1.1",
-              "resolved": "https://registry.npmjs.org/ethereumjs-tx/-/ethereumjs-tx-2.1.1.tgz",
-              "integrity": "sha512-QtVriNqowCFA19X9BCRPMgdVNJ0/gMBS91TQb1DfrhsbR748g4STwxZptFAwfqehMyrF8rDwB23w87PQwru0wA==",
-              "requires": {
-                "ethereumjs-common": "^1.3.1",
-                "ethereumjs-util": "^6.0.0"
-              }
-            }
-          }
-        },
-        "keccak": {
-          "version": "1.4.0",
-          "resolved": "https://registry.npmjs.org/keccak/-/keccak-1.4.0.tgz",
-          "integrity": "sha512-eZVaCpblK5formjPjeTBik7TAg+pqnDrMHIffSvi9Lh7PQgM1+hSzakUeZFCk9DVVG0dacZJuaz2ntwlzZUIBw==",
-          "requires": {
-            "bindings": "^1.2.1",
-            "inherits": "^2.0.3",
-            "nan": "^2.2.1",
-            "safe-buffer": "^5.1.0"
-          }
+        "uuid": {
+          "version": "3.3.3",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.3.tgz",
+          "integrity": "sha512-pW0No1RGHgzlpHJO1nsVrHKpOEIxkGg1xB+v0ZmdNH5OAeAwzAVrCnI2/6Mtx+Uys6iaylxa+D3g4j63IKKjSQ=="
         }
       }
     },
     "require-from-string": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz",
-      "integrity": "sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw=="
+      "integrity": "sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==",
+      "dev": true
     },
     "require-uncached": {
       "version": "1.0.3",
@@ -4664,6 +5776,14 @@
       "integrity": "sha1-Jsv+k10a7uq7Kbw/5a6wHpPUQiY=",
       "dev": true
     },
+    "responselike": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/responselike/-/responselike-1.0.2.tgz",
+      "integrity": "sha1-kYcg7ztjHFZCvgaPFa3lpG9Loec=",
+      "requires": {
+        "lowercase-keys": "^1.0.0"
+      }
+    },
     "restore-cursor": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/restore-cursor/-/restore-cursor-1.0.1.tgz",
@@ -4687,6 +5807,7 @@
       "version": "2.7.1",
       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.7.1.tgz",
       "integrity": "sha512-uWjbaKIK3T1OSVptzX7Nl6PvQ3qAGtKEtVRjRuazjfL3Bx5eI409VZSqgND+4UNnmzLVdPj9FqFJNPqBZFve4w==",
+      "dev": true,
       "requires": {
         "glob": "^7.1.3"
       }
@@ -4739,10 +5860,15 @@
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.0.tgz",
       "integrity": "sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg=="
     },
-    "scrypt-js": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-2.0.4.tgz",
-      "integrity": "sha512-4KsaGcPnuhtCZQCxFxN3GVYIhKFPTdLd8PLC552XwbMndtD0cjRFAhDuuydXQ0h08ZfPgzqe6EKHozpuH74iDw=="
+    "safer-buffer": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
+      "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
+    },
+    "scryptsy": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/scryptsy/-/scryptsy-2.1.0.tgz",
+      "integrity": "sha512-1CdSqHQowJBnMAFyPEBRfqag/YP9OF394FV+4YREIJX4ljD7OxvQRDayyoyyCk+senRjSkP6VnUNQmVQqB6g7w=="
     },
     "secp256k1": {
       "version": "3.7.1",
@@ -4759,6 +5885,24 @@
         "safe-buffer": "^5.1.2"
       }
     },
+    "seek-bzip": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/seek-bzip/-/seek-bzip-1.0.5.tgz",
+      "integrity": "sha1-z+kXyz0nS8/6x5J1ivUxc+sfq9w=",
+      "requires": {
+        "commander": "~2.8.1"
+      },
+      "dependencies": {
+        "commander": {
+          "version": "2.8.1",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.8.1.tgz",
+          "integrity": "sha1-Br42f+v9oMMwqh4qBy09yXYkJdQ=",
+          "requires": {
+            "graceful-readlink": ">= 1.0.0"
+          }
+        }
+      }
+    },
     "semaphore": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/semaphore/-/semaphore-1.1.0.tgz",
@@ -4769,11 +5913,81 @@
       "resolved": "https://registry.npmjs.org/semver/-/semver-5.4.1.tgz",
       "integrity": "sha512-WfG/X9+oATh81XtllIo/I8gOiY9EXRdv1cQdyykeXK17YcUW3EXUAi2To4pcH6nZtJPr7ZOpM5OMyWJZm+8Rsg=="
     },
+    "send": {
+      "version": "0.17.1",
+      "resolved": "https://registry.npmjs.org/send/-/send-0.17.1.tgz",
+      "integrity": "sha512-BsVKsiGcQMFwT8UxypobUKyv7irCNRHk1T0G680vk88yf6LBByGcZJOTJCrTP2xVN6yI+XjPJcNuE3V4fT9sAg==",
+      "requires": {
+        "debug": "2.6.9",
+        "depd": "~1.1.2",
+        "destroy": "~1.0.4",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
+        "fresh": "0.5.2",
+        "http-errors": "~1.7.2",
+        "mime": "1.6.0",
+        "ms": "2.1.1",
+        "on-finished": "~2.3.0",
+        "range-parser": "~1.2.1",
+        "statuses": "~1.5.0"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "2.6.9",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+          "requires": {
+            "ms": "2.0.0"
+          },
+          "dependencies": {
+            "ms": {
+              "version": "2.0.0",
+              "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+              "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+            }
+          }
+        },
+        "ms": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
+          "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg=="
+        }
+      }
+    },
+    "serve-static": {
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.1.tgz",
+      "integrity": "sha512-JMrvUwE54emCYWlTI+hGrGv5I8dEwmco/00EvkzIIsR7MqrHonbD9pO2MOfFnpFntl7ecpZs+3mW+XbQZu9QCg==",
+      "requires": {
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "parseurl": "~1.3.3",
+        "send": "0.17.1"
+      }
+    },
+    "servify": {
+      "version": "0.1.12",
+      "resolved": "https://registry.npmjs.org/servify/-/servify-0.1.12.tgz",
+      "integrity": "sha512-/xE6GvsKKqyo1BAY+KxOWXcLpPsUUyji7Qg3bVD7hh1eRze5bR1uYiuDA/k3Gof1s9BTzQZEJK8sNcNGFIzeWw==",
+      "requires": {
+        "body-parser": "^1.16.0",
+        "cors": "^2.8.1",
+        "express": "^4.14.0",
+        "request": "^2.79.0",
+        "xhr": "^2.3.3"
+      }
+    },
     "setimmediate": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.4.tgz",
       "integrity": "sha1-IOgd5iLUoCWIzgyNqJc8vPHTE48="
     },
+    "setprototypeof": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
+      "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw=="
+    },
     "sha.js": {
       "version": "2.4.11",
       "resolved": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.11.tgz",
@@ -4810,6 +6024,21 @@
       "integrity": "sha512-vFwSUfQvqybiICwZY5+DAWIPLKsWO31Q91JSKl3UYv+K5c2QRPzn0qzec6QPu1Qc9eHYItiP3NdJqNVqetYAww==",
       "dev": true
     },
+    "simple-concat": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/simple-concat/-/simple-concat-1.0.0.tgz",
+      "integrity": "sha1-c0TLuLbib7J9ZrL8hvn21Zl1IcY="
+    },
+    "simple-get": {
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/simple-get/-/simple-get-2.8.1.tgz",
+      "integrity": "sha512-lSSHRSw3mQNUGPAYRqo7xy9dhKmxFXIjLjp4KHpf99GEH2VH7C3AM+Qfx6du6jhfUi6Vm7XnbEVEf7Wb6N8jRw==",
+      "requires": {
+        "decompress-response": "^3.3.0",
+        "once": "^1.3.1",
+        "simple-concat": "^1.0.0"
+      }
+    },
     "slice-ansi": {
       "version": "0.0.4",
       "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-0.0.4.tgz",
@@ -4820,6 +6049,7 @@
       "version": "0.5.13",
       "resolved": "https://registry.npmjs.org/solc/-/solc-0.5.13.tgz",
       "integrity": "sha512-osybDVPGjAqcmSKLU3vh5iHuxbhGlJjQI5ZvI7nRDR0fgblQqYte4MGvNjbew8DPvCrmoH0ZBiz/KBBLlPxfMg==",
+      "dev": true,
       "requires": {
         "command-exists": "^1.2.8",
         "commander": "3.0.2",
@@ -4834,24 +6064,28 @@
         "commander": {
           "version": "3.0.2",
           "resolved": "https://registry.npmjs.org/commander/-/commander-3.0.2.tgz",
-          "integrity": "sha512-Gar0ASD4BDyKC4hl4DwHqDrmvjoxWKZigVnAbn5H1owvm4CxCPdb0HQDehwNYMJpla5+M2tPmPARzhtYuwpHow=="
+          "integrity": "sha512-Gar0ASD4BDyKC4hl4DwHqDrmvjoxWKZigVnAbn5H1owvm4CxCPdb0HQDehwNYMJpla5+M2tPmPARzhtYuwpHow==",
+          "dev": true
         },
         "js-sha3": {
           "version": "0.8.0",
           "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.8.0.tgz",
-          "integrity": "sha512-gF1cRrHhIzNfToc802P800N8PpXS+evLLXfsVpowqmAFR9uwbi89WvXg2QspOmXL8QL86J4T1EpFu+yUkwJY3Q=="
+          "integrity": "sha512-gF1cRrHhIzNfToc802P800N8PpXS+evLLXfsVpowqmAFR9uwbi89WvXg2QspOmXL8QL86J4T1EpFu+yUkwJY3Q==",
+          "dev": true
         },
         "semver": {
           "version": "5.7.1",
           "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
-          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ=="
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
+          "dev": true
         }
       }
     },
     "source-map": {
       "version": "0.5.7",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
-      "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w="
+      "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
+      "dev": true
     },
     "sprintf-js": {
       "version": "1.0.3",
@@ -4859,6 +6093,22 @@
       "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
       "dev": true
     },
+    "sshpk": {
+      "version": "1.16.1",
+      "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.16.1.tgz",
+      "integrity": "sha512-HXXqVUq7+pcKeLqqZj6mHFUMvXtOJt1uoUx09pFW6011inTMxqI8BA8PM95myrIyyKwdnzjdFjLiE6KBPVtJIg==",
+      "requires": {
+        "asn1": "~0.2.3",
+        "assert-plus": "^1.0.0",
+        "bcrypt-pbkdf": "^1.0.0",
+        "dashdash": "^1.12.0",
+        "ecc-jsbn": "~0.1.1",
+        "getpass": "^0.1.1",
+        "jsbn": "~0.1.0",
+        "safer-buffer": "^2.0.2",
+        "tweetnacl": "~0.14.0"
+      }
+    },
     "standard": {
       "version": "7.1.2",
       "resolved": "https://registry.npmjs.org/standard/-/standard-7.1.2.tgz",
@@ -4946,6 +6196,16 @@
         }
       }
     },
+    "statuses": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
+      "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
+    },
+    "strict-uri-encode": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz",
+      "integrity": "sha1-J5siXfHVgrH1TmWt3UNS4Y+qBxM="
+    },
     "string-width": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
@@ -5000,6 +6260,14 @@
         "ansi-regex": "^2.0.0"
       }
     },
+    "strip-dirs": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/strip-dirs/-/strip-dirs-2.1.0.tgz",
+      "integrity": "sha512-JOCxOeKLm2CAS73y/U4ZeZPTkE+gNVCzKt7Eox84Iej1LT/2pTWYpZKJuxwQpvX1LiZb1xokNR7RLfuBAa7T3g==",
+      "requires": {
+        "is-natural-number": "^4.0.1"
+      }
+    },
     "strip-hex-prefix": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/strip-hex-prefix/-/strip-hex-prefix-1.0.0.tgz",
@@ -5058,6 +6326,94 @@
         }
       }
     },
+    "swarm-js": {
+      "version": "0.1.39",
+      "resolved": "https://registry.npmjs.org/swarm-js/-/swarm-js-0.1.39.tgz",
+      "integrity": "sha512-QLMqL2rzF6n5s50BptyD6Oi0R1aWlJC5Y17SRIVXRj6OR1DRIPM7nepvrxxkjA1zNzFz6mUOMjfeqeDaWB7OOg==",
+      "requires": {
+        "bluebird": "^3.5.0",
+        "buffer": "^5.0.5",
+        "decompress": "^4.0.0",
+        "eth-lib": "^0.1.26",
+        "fs-extra": "^4.0.2",
+        "got": "^7.1.0",
+        "mime-types": "^2.1.16",
+        "mkdirp-promise": "^5.0.1",
+        "mock-fs": "^4.1.0",
+        "setimmediate": "^1.0.5",
+        "tar": "^4.0.2",
+        "xhr-request-promise": "^0.1.2"
+      },
+      "dependencies": {
+        "fs-extra": {
+          "version": "4.0.3",
+          "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-4.0.3.tgz",
+          "integrity": "sha512-q6rbdDd1o2mAnQreO7YADIxf/Whx4AHBiRf6d+/cVT8h44ss+lHgxf1FemcqDnQt9X3ct4McHr+JMGlYSsK7Cg==",
+          "requires": {
+            "graceful-fs": "^4.1.2",
+            "jsonfile": "^4.0.0",
+            "universalify": "^0.1.0"
+          }
+        },
+        "get-stream": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-3.0.0.tgz",
+          "integrity": "sha1-jpQ9E1jcN1VQVOy+LtsFqhdO3hQ="
+        },
+        "got": {
+          "version": "7.1.0",
+          "resolved": "https://registry.npmjs.org/got/-/got-7.1.0.tgz",
+          "integrity": "sha512-Y5WMo7xKKq1muPsxD+KmrR8DH5auG7fBdDVueZwETwV6VytKyU9OX/ddpq2/1hp1vIPvVb4T81dKQz3BivkNLw==",
+          "requires": {
+            "decompress-response": "^3.2.0",
+            "duplexer3": "^0.1.4",
+            "get-stream": "^3.0.0",
+            "is-plain-obj": "^1.1.0",
+            "is-retry-allowed": "^1.0.0",
+            "is-stream": "^1.0.0",
+            "isurl": "^1.0.0-alpha5",
+            "lowercase-keys": "^1.0.0",
+            "p-cancelable": "^0.3.0",
+            "p-timeout": "^1.1.1",
+            "safe-buffer": "^5.0.1",
+            "timed-out": "^4.0.0",
+            "url-parse-lax": "^1.0.0",
+            "url-to-options": "^1.0.1"
+          }
+        },
+        "jsonfile": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-4.0.0.tgz",
+          "integrity": "sha1-h3Gq4HmbZAdrdmQPygWPnBDjPss=",
+          "requires": {
+            "graceful-fs": "^4.1.6"
+          }
+        },
+        "p-cancelable": {
+          "version": "0.3.0",
+          "resolved": "https://registry.npmjs.org/p-cancelable/-/p-cancelable-0.3.0.tgz",
+          "integrity": "sha512-RVbZPLso8+jFeq1MfNvgXtCRED2raz/dKpacfTNxsx6pLEpEomM7gah6VeHSYV3+vo0OAi4MkArtQcWWXuQoyw=="
+        },
+        "prepend-http": {
+          "version": "1.0.4",
+          "resolved": "https://registry.npmjs.org/prepend-http/-/prepend-http-1.0.4.tgz",
+          "integrity": "sha1-1PRWKwzjaW5BrFLQ4ALlemNdxtw="
+        },
+        "setimmediate": {
+          "version": "1.0.5",
+          "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.5.tgz",
+          "integrity": "sha1-KQy7Iy4waULX1+qbg3Mqt4VvgoU="
+        },
+        "url-parse-lax": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/url-parse-lax/-/url-parse-lax-1.0.0.tgz",
+          "integrity": "sha1-evjzA2Rem9eaJy56FKxovAYJ2nM=",
+          "requires": {
+            "prepend-http": "^1.0.1"
+          }
+        }
+      }
+    },
     "table": {
       "version": "3.8.3",
       "resolved": "https://registry.npmjs.org/table/-/table-3.8.3.tgz",
@@ -5170,6 +6526,41 @@
         }
       }
     },
+    "tar": {
+      "version": "4.4.13",
+      "resolved": "https://registry.npmjs.org/tar/-/tar-4.4.13.tgz",
+      "integrity": "sha512-w2VwSrBoHa5BsSyH+KxEqeQBAllHhccyMFVHtGtdMpF4W7IRWfZjFiQceJPChOeTsSDVUpER2T8FA93pr0L+QA==",
+      "requires": {
+        "chownr": "^1.1.1",
+        "fs-minipass": "^1.2.5",
+        "minipass": "^2.8.6",
+        "minizlib": "^1.2.1",
+        "mkdirp": "^0.5.0",
+        "safe-buffer": "^5.1.2",
+        "yallist": "^3.0.3"
+      }
+    },
+    "tar-stream": {
+      "version": "1.6.2",
+      "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-1.6.2.tgz",
+      "integrity": "sha512-rzS0heiNf8Xn7/mpdSVVSMAWAoy9bfb1WOTYC78Z0UQKeKa/CWS8FOq0lKGNa8DWKAn9gxjCvMLYc5PGXYlK2A==",
+      "requires": {
+        "bl": "^1.0.0",
+        "buffer-alloc": "^1.2.0",
+        "end-of-stream": "^1.0.0",
+        "fs-constants": "^1.0.0",
+        "readable-stream": "^2.3.0",
+        "to-buffer": "^1.1.1",
+        "xtend": "^4.0.0"
+      },
+      "dependencies": {
+        "xtend": {
+          "version": "4.0.2",
+          "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+          "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ=="
+        }
+      }
+    },
     "text-table": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/text-table/-/text-table-0.2.0.tgz",
@@ -5179,8 +6570,7 @@
     "through": {
       "version": "2.3.8",
       "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
-      "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=",
-      "dev": true
+      "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU="
     },
     "through2": {
       "version": "0.6.5",
@@ -5212,31 +6602,80 @@
         }
       }
     },
+    "timed-out": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/timed-out/-/timed-out-4.0.1.tgz",
+      "integrity": "sha1-8y6srFoXW+ol1/q1Zas+2HQe9W8="
+    },
     "tmp": {
       "version": "0.0.33",
       "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.33.tgz",
       "integrity": "sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==",
+      "dev": true,
       "requires": {
         "os-tmpdir": "~1.0.2"
       }
     },
+    "to-buffer": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/to-buffer/-/to-buffer-1.1.1.tgz",
+      "integrity": "sha512-lx9B5iv7msuFYE3dytT+KE5tap+rNYw+K4jVkb9R/asAb+pbBSM17jtunHplhBe6RRJdZx3Pn2Jph24O32mOVg=="
+    },
     "to-fast-properties": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
       "integrity": "sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=",
       "dev": true
     },
+    "to-readable-stream": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/to-readable-stream/-/to-readable-stream-1.0.0.tgz",
+      "integrity": "sha512-Iq25XBt6zD5npPhlLVXGFN3/gyR2/qODcKNNyTMd4vbm39HUaOiAM4PMq0eMVC/Tkxz+Zjdsc55g9yyz+Yq00Q=="
+    },
+    "toidentifier": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
+      "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw=="
+    },
+    "tough-cookie": {
+      "version": "2.4.3",
+      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.4.3.tgz",
+      "integrity": "sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==",
+      "requires": {
+        "psl": "^1.1.24",
+        "punycode": "^1.4.1"
+      },
+      "dependencies": {
+        "punycode": {
+          "version": "1.4.1",
+          "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
+          "integrity": "sha1-wNWmOycYgArY4esPpSachN1BhF4="
+        }
+      }
+    },
     "trim-right": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/trim-right/-/trim-right-1.0.1.tgz",
       "integrity": "sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM=",
       "dev": true
     },
+    "tunnel-agent": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
+      "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
+      "requires": {
+        "safe-buffer": "^5.0.1"
+      }
+    },
+    "tweetnacl": {
+      "version": "0.14.5",
+      "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
+      "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q="
+    },
     "type": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/type/-/type-1.2.0.tgz",
-      "integrity": "sha512-+5nt5AAniqsCnu2cEQQdpzCAh33kVx8n0VoFidKpB1dVVLAN/F+bgVOqOJqOnEnrhp222clB5p3vUlD+1QAnfg==",
-      "dev": true
+      "integrity": "sha512-+5nt5AAniqsCnu2cEQQdpzCAh33kVx8n0VoFidKpB1dVVLAN/F+bgVOqOJqOnEnrhp222clB5p3vUlD+1QAnfg=="
     },
     "type-check": {
       "version": "0.3.2",
@@ -5247,12 +6686,48 @@
         "prelude-ls": "~1.1.2"
       }
     },
+    "type-is": {
+      "version": "1.6.18",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
+      "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
+      "requires": {
+        "media-typer": "0.3.0",
+        "mime-types": "~2.1.24"
+      }
+    },
     "typedarray": {
       "version": "0.0.6",
       "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
       "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=",
       "dev": true
     },
+    "typedarray-to-buffer": {
+      "version": "3.1.5",
+      "resolved": "https://registry.npmjs.org/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz",
+      "integrity": "sha512-zdu8XMNEDepKKR+XYOXAVPtWui0ly0NtohUscw+UmaHiAWT8hrV1rr//H6V+0DvJ3OQ19S979M0laLfX8rm82Q==",
+      "requires": {
+        "is-typedarray": "^1.0.0"
+      }
+    },
+    "ultron": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
+      "integrity": "sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og=="
+    },
+    "unbzip2-stream": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/unbzip2-stream/-/unbzip2-stream-1.3.3.tgz",
+      "integrity": "sha512-fUlAF7U9Ah1Q6EieQ4x4zLNejrRvDWUYmxXUpN3uziFYCHapjWFaCAnreY9bGgxzaMCFAPPpYNng57CypwJVhg==",
+      "requires": {
+        "buffer": "^5.2.1",
+        "through": "^2.3.8"
+      }
+    },
+    "underscore": {
+      "version": "1.9.1",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.9.1.tgz",
+      "integrity": "sha512-5/4etnCkd9c8gwgowi5/om/mYO5ajCaOgdzj/oW+0eQV9WxKBDZw5+ycmKmeaTXjInS/W0BzpGLo2xR2aBwZdg=="
+    },
     "unicode-canonical-property-names-ecmascript": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-1.0.4.tgz",
@@ -5287,6 +6762,42 @@
       "integrity": "sha1-sxxa6CVIRKOoKBVBzisEuGWnNP8=",
       "dev": true
     },
+    "universalify": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
+      "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg=="
+    },
+    "unpipe": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
+    },
+    "uri-js": {
+      "version": "4.2.2",
+      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz",
+      "integrity": "sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==",
+      "requires": {
+        "punycode": "^2.1.0"
+      }
+    },
+    "url-parse-lax": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/url-parse-lax/-/url-parse-lax-3.0.0.tgz",
+      "integrity": "sha1-FrXK/Afb42dsGxmZF3gj1lA6yww=",
+      "requires": {
+        "prepend-http": "^2.0.0"
+      }
+    },
+    "url-set-query": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/url-set-query/-/url-set-query-1.0.0.tgz",
+      "integrity": "sha1-AW6M/Xwg7gXK/neV6JK9BwL6ozk="
+    },
+    "url-to-options": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/url-to-options/-/url-to-options-1.0.1.tgz",
+      "integrity": "sha1-FQWgOiiaSMvXpDTvuu7FBV9WM6k="
+    },
     "user-home": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/user-home/-/user-home-2.0.0.tgz",
@@ -5297,9 +6808,9 @@
       }
     },
     "utf8": {
-      "version": "2.1.2",
-      "resolved": "https://registry.npmjs.org/utf8/-/utf8-2.1.2.tgz",
-      "integrity": "sha1-H6DZJw6b6FDZsFAn9jUZv0ZFfZY="
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/utf8/-/utf8-3.0.0.tgz",
+      "integrity": "sha512-E8VjFIQ/TyQgp+TZfS6l8yp/xWppSAHzidGiRrqe4bK4XP9pTRyKFgGJpO3SN7zdX4DeomTrwaseCHovfpFcqQ=="
     },
     "util-deprecate": {
       "version": "1.0.2",
@@ -5315,21 +6826,379 @@
         "object.getownpropertydescriptors": "^2.0.3"
       }
     },
+    "utils-merge": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
+      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+    },
     "uuid": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-2.0.1.tgz",
       "integrity": "sha1-wqMN7bPlNdcsz4LjQ5QaULqFM6w="
     },
+    "vary": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+    },
+    "verror": {
+      "version": "1.10.0",
+      "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
+      "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
+      "requires": {
+        "assert-plus": "^1.0.0",
+        "core-util-is": "1.0.2",
+        "extsprintf": "^1.2.0"
+      }
+    },
     "web3": {
-      "version": "0.20.6",
-      "resolved": "https://registry.npmjs.org/web3/-/web3-0.20.6.tgz",
-      "integrity": "sha1-PpcwauAk+yThCj11yIQwJWIhUSA=",
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3/-/web3-1.2.4.tgz",
+      "integrity": "sha512-xPXGe+w0x0t88Wj+s/dmAdASr3O9wmA9mpZRtixGZxmBexAF0MjfqYM+MS4tVl5s11hMTN3AZb8cDD4VLfC57A==",
+      "requires": {
+        "@types/node": "^12.6.1",
+        "web3-bzz": "1.2.4",
+        "web3-core": "1.2.4",
+        "web3-eth": "1.2.4",
+        "web3-eth-personal": "1.2.4",
+        "web3-net": "1.2.4",
+        "web3-shh": "1.2.4",
+        "web3-utils": "1.2.4"
+      }
+    },
+    "web3-bzz": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-bzz/-/web3-bzz-1.2.4.tgz",
+      "integrity": "sha512-MqhAo/+0iQSMBtt3/QI1rU83uvF08sYq8r25+OUZ+4VtihnYsmkkca+rdU0QbRyrXY2/yGIpI46PFdh0khD53A==",
+      "requires": {
+        "@types/node": "^10.12.18",
+        "got": "9.6.0",
+        "swarm-js": "0.1.39",
+        "underscore": "1.9.1"
+      },
+      "dependencies": {
+        "@types/node": {
+          "version": "10.17.9",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-10.17.9.tgz",
+          "integrity": "sha512-+6VygF9LbG7Gaqeog2G7u1+RUcmo0q1rI+2ZxdIg2fAUngk5Vz9fOCHXdloNUOHEPd1EuuOpL5O0CdgN9Fx5UQ=="
+        }
+      }
+    },
+    "web3-core": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-core/-/web3-core-1.2.4.tgz",
+      "integrity": "sha512-CHc27sMuET2cs1IKrkz7xzmTdMfZpYswe7f0HcuyneTwS1yTlTnHyqjAaTy0ZygAb/x4iaVox+Gvr4oSAqSI+A==",
+      "requires": {
+        "@types/bignumber.js": "^5.0.0",
+        "@types/bn.js": "^4.11.4",
+        "@types/node": "^12.6.1",
+        "web3-core-helpers": "1.2.4",
+        "web3-core-method": "1.2.4",
+        "web3-core-requestmanager": "1.2.4",
+        "web3-utils": "1.2.4"
+      }
+    },
+    "web3-core-helpers": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-core-helpers/-/web3-core-helpers-1.2.4.tgz",
+      "integrity": "sha512-U7wbsK8IbZvF3B7S+QMSNP0tni/6VipnJkB0tZVEpHEIV2WWeBHYmZDnULWcsS/x/jn9yKhJlXIxWGsEAMkjiw==",
+      "requires": {
+        "underscore": "1.9.1",
+        "web3-eth-iban": "1.2.4",
+        "web3-utils": "1.2.4"
+      }
+    },
+    "web3-core-method": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-core-method/-/web3-core-method-1.2.4.tgz",
+      "integrity": "sha512-8p9kpL7di2qOVPWgcM08kb+yKom0rxRCMv6m/K+H+yLSxev9TgMbCgMSbPWAHlyiF3SJHw7APFKahK5Z+8XT5A==",
       "requires": {
-        "bignumber.js": "git+https://github.com/frozeman/bignumber.js-nolookahead.git",
-        "crypto-js": "^3.1.4",
-        "utf8": "^2.1.1",
-        "xhr2": "*",
-        "xmlhttprequest": "*"
+        "underscore": "1.9.1",
+        "web3-core-helpers": "1.2.4",
+        "web3-core-promievent": "1.2.4",
+        "web3-core-subscriptions": "1.2.4",
+        "web3-utils": "1.2.4"
+      }
+    },
+    "web3-core-promievent": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-core-promievent/-/web3-core-promievent-1.2.4.tgz",
+      "integrity": "sha512-gEUlm27DewUsfUgC3T8AxkKi8Ecx+e+ZCaunB7X4Qk3i9F4C+5PSMGguolrShZ7Zb6717k79Y86f3A00O0VAZw==",
+      "requires": {
+        "any-promise": "1.3.0",
+        "eventemitter3": "3.1.2"
+      }
+    },
+    "web3-core-requestmanager": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-core-requestmanager/-/web3-core-requestmanager-1.2.4.tgz",
+      "integrity": "sha512-eZJDjyNTDtmSmzd3S488nR/SMJtNnn/GuwxnMh3AzYCqG3ZMfOylqTad2eYJPvc2PM5/Gj1wAMQcRpwOjjLuPg==",
+      "requires": {
+        "underscore": "1.9.1",
+        "web3-core-helpers": "1.2.4",
+        "web3-providers-http": "1.2.4",
+        "web3-providers-ipc": "1.2.4",
+        "web3-providers-ws": "1.2.4"
+      }
+    },
+    "web3-core-subscriptions": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-core-subscriptions/-/web3-core-subscriptions-1.2.4.tgz",
+      "integrity": "sha512-3D607J2M8ymY9V+/WZq4MLlBulwCkwEjjC2U+cXqgVO1rCyVqbxZNCmHyNYHjDDCxSEbks9Ju5xqJxDSxnyXEw==",
+      "requires": {
+        "eventemitter3": "3.1.2",
+        "underscore": "1.9.1",
+        "web3-core-helpers": "1.2.4"
+      }
+    },
+    "web3-eth": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-eth/-/web3-eth-1.2.4.tgz",
+      "integrity": "sha512-+j+kbfmZsbc3+KJpvHM16j1xRFHe2jBAniMo1BHKc3lho6A8Sn9Buyut6odubguX2AxoRArCdIDCkT9hjUERpA==",
+      "requires": {
+        "underscore": "1.9.1",
+        "web3-core": "1.2.4",
+        "web3-core-helpers": "1.2.4",
+        "web3-core-method": "1.2.4",
+        "web3-core-subscriptions": "1.2.4",
+        "web3-eth-abi": "1.2.4",
+        "web3-eth-accounts": "1.2.4",
+        "web3-eth-contract": "1.2.4",
+        "web3-eth-ens": "1.2.4",
+        "web3-eth-iban": "1.2.4",
+        "web3-eth-personal": "1.2.4",
+        "web3-net": "1.2.4",
+        "web3-utils": "1.2.4"
+      }
+    },
+    "web3-eth-abi": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-eth-abi/-/web3-eth-abi-1.2.4.tgz",
+      "integrity": "sha512-8eLIY4xZKoU3DSVu1pORluAw9Ru0/v4CGdw5so31nn+7fR8zgHMgwbFe0aOqWQ5VU42PzMMXeIJwt4AEi2buFg==",
+      "requires": {
+        "ethers": "4.0.0-beta.3",
+        "underscore": "1.9.1",
+        "web3-utils": "1.2.4"
+      },
+      "dependencies": {
+        "@types/node": {
+          "version": "10.17.9",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-10.17.9.tgz",
+          "integrity": "sha512-+6VygF9LbG7Gaqeog2G7u1+RUcmo0q1rI+2ZxdIg2fAUngk5Vz9fOCHXdloNUOHEPd1EuuOpL5O0CdgN9Fx5UQ=="
+        },
+        "elliptic": {
+          "version": "6.3.3",
+          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.3.3.tgz",
+          "integrity": "sha1-VILZZG1UvLif19mU/J4ulWiHbj8=",
+          "requires": {
+            "bn.js": "^4.4.0",
+            "brorand": "^1.0.1",
+            "hash.js": "^1.0.0",
+            "inherits": "^2.0.1"
+          }
+        },
+        "ethers": {
+          "version": "4.0.0-beta.3",
+          "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.0-beta.3.tgz",
+          "integrity": "sha512-YYPogooSknTwvHg3+Mv71gM/3Wcrx+ZpCzarBj3mqs9njjRkrOo2/eufzhHloOCo3JSoNI4TQJJ6yU5ABm3Uog==",
+          "requires": {
+            "@types/node": "^10.3.2",
+            "aes-js": "3.0.0",
+            "bn.js": "^4.4.0",
+            "elliptic": "6.3.3",
+            "hash.js": "1.1.3",
+            "js-sha3": "0.5.7",
+            "scrypt-js": "2.0.3",
+            "setimmediate": "1.0.4",
+            "uuid": "2.0.1",
+            "xmlhttprequest": "1.8.0"
+          }
+        },
+        "hash.js": {
+          "version": "1.1.3",
+          "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.1.3.tgz",
+          "integrity": "sha512-/UETyP0W22QILqS+6HowevwhEFJ3MBJnwTf75Qob9Wz9t0DPuisL8kW8YZMK62dHAKE1c1p+gY1TtOLY+USEHA==",
+          "requires": {
+            "inherits": "^2.0.3",
+            "minimalistic-assert": "^1.0.0"
+          }
+        },
+        "js-sha3": {
+          "version": "0.5.7",
+          "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.5.7.tgz",
+          "integrity": "sha1-DU/9gALVMzqrr0oj7tL2N0yfKOc="
+        },
+        "scrypt-js": {
+          "version": "2.0.3",
+          "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-2.0.3.tgz",
+          "integrity": "sha1-uwBAvgMEPamgEqLOqfyfhSz8h9Q="
+        }
+      }
+    },
+    "web3-eth-accounts": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-eth-accounts/-/web3-eth-accounts-1.2.4.tgz",
+      "integrity": "sha512-04LzT/UtWmRFmi4hHRewP5Zz43fWhuHiK5XimP86sUQodk/ByOkXQ3RoXyGXFMNoRxdcAeRNxSfA2DpIBc9xUw==",
+      "requires": {
+        "@web3-js/scrypt-shim": "^0.1.0",
+        "any-promise": "1.3.0",
+        "crypto-browserify": "3.12.0",
+        "eth-lib": "0.2.7",
+        "ethereumjs-common": "^1.3.2",
+        "ethereumjs-tx": "^2.1.1",
+        "underscore": "1.9.1",
+        "uuid": "3.3.2",
+        "web3-core": "1.2.4",
+        "web3-core-helpers": "1.2.4",
+        "web3-core-method": "1.2.4",
+        "web3-utils": "1.2.4"
+      },
+      "dependencies": {
+        "eth-lib": {
+          "version": "0.2.7",
+          "resolved": "https://registry.npmjs.org/eth-lib/-/eth-lib-0.2.7.tgz",
+          "integrity": "sha1-L5Pxex4jrsN1nNSj/iDBKGo/wco=",
+          "requires": {
+            "bn.js": "^4.11.6",
+            "elliptic": "^6.4.0",
+            "xhr-request-promise": "^0.1.2"
+          }
+        },
+        "uuid": {
+          "version": "3.3.2",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
+          "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA=="
+        }
+      }
+    },
+    "web3-eth-contract": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-eth-contract/-/web3-eth-contract-1.2.4.tgz",
+      "integrity": "sha512-b/9zC0qjVetEYnzRA1oZ8gF1OSSUkwSYi5LGr4GeckLkzXP7osEnp9lkO/AQcE4GpG+l+STnKPnASXJGZPgBRQ==",
+      "requires": {
+        "@types/bn.js": "^4.11.4",
+        "underscore": "1.9.1",
+        "web3-core": "1.2.4",
+        "web3-core-helpers": "1.2.4",
+        "web3-core-method": "1.2.4",
+        "web3-core-promievent": "1.2.4",
+        "web3-core-subscriptions": "1.2.4",
+        "web3-eth-abi": "1.2.4",
+        "web3-utils": "1.2.4"
+      }
+    },
+    "web3-eth-ens": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-eth-ens/-/web3-eth-ens-1.2.4.tgz",
+      "integrity": "sha512-g8+JxnZlhdsCzCS38Zm6R/ngXhXzvc3h7bXlxgKU4coTzLLoMpgOAEz71GxyIJinWTFbLXk/WjNY0dazi9NwVw==",
+      "requires": {
+        "eth-ens-namehash": "2.0.8",
+        "underscore": "1.9.1",
+        "web3-core": "1.2.4",
+        "web3-core-helpers": "1.2.4",
+        "web3-core-promievent": "1.2.4",
+        "web3-eth-abi": "1.2.4",
+        "web3-eth-contract": "1.2.4",
+        "web3-utils": "1.2.4"
+      }
+    },
+    "web3-eth-iban": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-eth-iban/-/web3-eth-iban-1.2.4.tgz",
+      "integrity": "sha512-D9HIyctru/FLRpXakRwmwdjb5bWU2O6UE/3AXvRm6DCOf2e+7Ve11qQrPtaubHfpdW3KWjDKvlxV9iaFv/oTMQ==",
+      "requires": {
+        "bn.js": "4.11.8",
+        "web3-utils": "1.2.4"
+      }
+    },
+    "web3-eth-personal": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-eth-personal/-/web3-eth-personal-1.2.4.tgz",
+      "integrity": "sha512-5Russ7ZECwHaZXcN3DLuLS7390Vzgrzepl4D87SD6Sn1DHsCZtvfdPIYwoTmKNp69LG3mORl7U23Ga5YxqkICw==",
+      "requires": {
+        "@types/node": "^12.6.1",
+        "web3-core": "1.2.4",
+        "web3-core-helpers": "1.2.4",
+        "web3-core-method": "1.2.4",
+        "web3-net": "1.2.4",
+        "web3-utils": "1.2.4"
+      }
+    },
+    "web3-net": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-net/-/web3-net-1.2.4.tgz",
+      "integrity": "sha512-wKOsqhyXWPSYTGbp7ofVvni17yfRptpqoUdp3SC8RAhDmGkX6irsiT9pON79m6b3HUHfLoBilFQyt/fTUZOf7A==",
+      "requires": {
+        "web3-core": "1.2.4",
+        "web3-core-method": "1.2.4",
+        "web3-utils": "1.2.4"
+      }
+    },
+    "web3-providers-http": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-providers-http/-/web3-providers-http-1.2.4.tgz",
+      "integrity": "sha512-dzVCkRrR/cqlIrcrWNiPt9gyt0AZTE0J+MfAu9rR6CyIgtnm1wFUVVGaxYRxuTGQRO4Dlo49gtoGwaGcyxqiTw==",
+      "requires": {
+        "web3-core-helpers": "1.2.4",
+        "xhr2-cookies": "1.1.0"
+      }
+    },
+    "web3-providers-ipc": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-providers-ipc/-/web3-providers-ipc-1.2.4.tgz",
+      "integrity": "sha512-8J3Dguffin51gckTaNrO3oMBo7g+j0UNk6hXmdmQMMNEtrYqw4ctT6t06YOf9GgtOMjSAc1YEh3LPrvgIsR7og==",
+      "requires": {
+        "oboe": "2.1.4",
+        "underscore": "1.9.1",
+        "web3-core-helpers": "1.2.4"
+      }
+    },
+    "web3-providers-ws": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-providers-ws/-/web3-providers-ws-1.2.4.tgz",
+      "integrity": "sha512-F/vQpDzeK+++oeeNROl1IVTufFCwCR2hpWe5yRXN0ApLwHqXrMI7UwQNdJ9iyibcWjJf/ECbauEEQ8CHgE+MYQ==",
+      "requires": {
+        "@web3-js/websocket": "^1.0.29",
+        "underscore": "1.9.1",
+        "web3-core-helpers": "1.2.4"
+      }
+    },
+    "web3-shh": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-shh/-/web3-shh-1.2.4.tgz",
+      "integrity": "sha512-z+9SCw0dE+69Z/Hv8809XDbLj7lTfEv9Sgu8eKEIdGntZf4v7ewj5rzN5bZZSz8aCvfK7Y6ovz1PBAu4QzS4IQ==",
+      "requires": {
+        "web3-core": "1.2.4",
+        "web3-core-method": "1.2.4",
+        "web3-core-subscriptions": "1.2.4",
+        "web3-net": "1.2.4"
+      }
+    },
+    "web3-utils": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/web3-utils/-/web3-utils-1.2.4.tgz",
+      "integrity": "sha512-+S86Ip+jqfIPQWvw2N/xBQq5JNqCO0dyvukGdJm8fEWHZbckT4WxSpHbx+9KLEWY4H4x9pUwnoRkK87pYyHfgQ==",
+      "requires": {
+        "bn.js": "4.11.8",
+        "eth-lib": "0.2.7",
+        "ethereum-bloom-filters": "^1.0.6",
+        "ethjs-unit": "0.1.6",
+        "number-to-bn": "1.7.0",
+        "randombytes": "^2.1.0",
+        "underscore": "1.9.1",
+        "utf8": "3.0.0"
+      },
+      "dependencies": {
+        "eth-lib": {
+          "version": "0.2.7",
+          "resolved": "https://registry.npmjs.org/eth-lib/-/eth-lib-0.2.7.tgz",
+          "integrity": "sha1-L5Pxex4jrsN1nNSj/iDBKGo/wco=",
+          "requires": {
+            "bn.js": "^4.11.6",
+            "elliptic": "^6.4.0",
+            "xhr-request-promise": "^0.1.2"
+          }
+        }
       }
     },
     "which": {
@@ -5361,10 +7230,70 @@
         "mkdirp": "^0.5.1"
       }
     },
-    "xhr2": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/xhr2/-/xhr2-0.2.0.tgz",
-      "integrity": "sha512-BDtiD0i2iKPK/S8OAZfpk6tyzEDnKKSjxWHcMBVmh+LuqJ8A32qXTyOx+TVOg2dKvq6zGBq2sgKPkEeRs1qTRA=="
+    "ws": {
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-3.3.3.tgz",
+      "integrity": "sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==",
+      "requires": {
+        "async-limiter": "~1.0.0",
+        "safe-buffer": "~5.1.0",
+        "ultron": "~1.1.0"
+      },
+      "dependencies": {
+        "safe-buffer": {
+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+        }
+      }
+    },
+    "xhr": {
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/xhr/-/xhr-2.5.0.tgz",
+      "integrity": "sha512-4nlO/14t3BNUZRXIXfXe+3N6w3s1KoxcJUUURctd64BLRe67E4gRwp4PjywtDY72fXpZ1y6Ch0VZQRY/gMPzzQ==",
+      "requires": {
+        "global": "~4.3.0",
+        "is-function": "^1.0.1",
+        "parse-headers": "^2.0.0",
+        "xtend": "^4.0.0"
+      },
+      "dependencies": {
+        "xtend": {
+          "version": "4.0.2",
+          "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+          "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ=="
+        }
+      }
+    },
+    "xhr-request": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/xhr-request/-/xhr-request-1.1.0.tgz",
+      "integrity": "sha512-Y7qzEaR3FDtL3fP30k9wO/e+FBnBByZeybKOhASsGP30NIkRAAkKD/sCnLvgEfAIEC1rcmK7YG8f4oEnIrrWzA==",
+      "requires": {
+        "buffer-to-arraybuffer": "^0.0.5",
+        "object-assign": "^4.1.1",
+        "query-string": "^5.0.1",
+        "simple-get": "^2.7.0",
+        "timed-out": "^4.0.1",
+        "url-set-query": "^1.0.0",
+        "xhr": "^2.0.4"
+      }
+    },
+    "xhr-request-promise": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/xhr-request-promise/-/xhr-request-promise-0.1.2.tgz",
+      "integrity": "sha1-NDxE0e53JrhkgGloLQ+EDIO0Jh0=",
+      "requires": {
+        "xhr-request": "^1.0.1"
+      }
+    },
+    "xhr2-cookies": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/xhr2-cookies/-/xhr2-cookies-1.1.0.tgz",
+      "integrity": "sha1-fXdEnQmZGX8VXLc7I99yUF7YnUg=",
+      "requires": {
+        "cookiejar": "^2.1.1"
+      }
     },
     "xmlhttprequest": {
       "version": "1.8.0",
@@ -5379,10 +7308,24 @@
         "object-keys": "~0.4.0"
       }
     },
+    "yaeti": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/yaeti/-/yaeti-0.0.6.tgz",
+      "integrity": "sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc="
+    },
     "yallist": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
       "integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g=="
+    },
+    "yauzl": {
+      "version": "2.10.0",
+      "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
+      "integrity": "sha1-x+sXyT4RLLEIb6bY5R+wZnt5pfk=",
+      "requires": {
+        "buffer-crc32": "~0.2.3",
+        "fd-slicer": "~1.1.0"
+      }
     }
   }
 }
diff --git a/remix-debug/package.json b/remix-debug/package.json
index 215bbadea0..4657a77edc 100644
--- a/remix-debug/package.json
+++ b/remix-debug/package.json
@@ -22,7 +22,7 @@
     "ethereumjs-util": "^6.2.0",
     "ethereumjs-vm": "4.1.1",
     "remix-lib": "0.4.17",
-    "web3": "0.20.6"
+    "web3": "^1.2.4"
   },
   "devDependencies": {
     "@babel/core": "^7.4.5",