Use webworkify and move the compiler worker to the app directory

package.json

@@ -18,7 +18,8 @@
     "jquery": "^2.2.0",
     "brace": "^0.8.0",
     "browserify": "^13.0.0",
-    "js-base64": "^2.1.9"
+    "js-base64": "^2.1.9",
+    "webworkify": "^1.2.1"
   },
   "repository": {
     "type": "git",

src/app/compiler-worker.js

@@ -1,7 +1,10 @@
 var version = function() { return '(loading)'; }
 var compileJSON = function() { return ''; }
 var missingInputs = [];
-addEventListener('message', function(e) {
+
+module.exports = function (self) {
+
+self.addEventListener('message', function(e) {
 	var data = e.data;
 	switch (data.cmd) {
 		case 'loadVersion':
@@ -37,3 +40,5 @@ addEventListener('message', function(e) {
 			break;
 	}
 }, false);
+
+}

src/app/compiler.js

@@ -1,3 +1,4 @@
+var webworkify = require('webworkify');
 var queryParams = require('./query-params');
 var utils = require('./utils');
 var Renderer = require('./renderer');
@@ -139,7 +140,7 @@ function Compiler (editor, handleGithubCall, outputField, hidingRHP, updateFiles
     if (worker !== null) {
       worker.terminate();
     }
-    worker = new Worker('worker.js');
+    worker = webworkify(require('./compiler-worker.js'));
     worker.addEventListener('message', function (msg) {
       var data = msg.data;
       switch (data.cmd) {