diff --git a/dist/ethereum.js b/dist/ethereum.js
index 9e0a59c2a..1307f2f1a 100644
--- a/dist/ethereum.js
+++ b/dist/ethereum.js
@@ -1,7 +1,7 @@
 require=(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
-function formatJsonRpcObject(object){return{jsonrpc:"2.0",method:object.call,params:object.args,id:object._id}}function formatJsonRpcMessage(message){var object=JSON.parse(message);return{_id:object.id,data:object.result}}var HttpRpcProvider=function(host){this.handlers=[],this.host=host};HttpRpcProvider.prototype.sendRequest=function(payload,cb){var data=formatJsonRpcObject(payload),request=new XMLHttpRequest;request.open("POST",this.host,!0),request.send(JSON.stringify(data)),request.onreadystatechange=function(){4===request.readyState&&cb&&cb(request)}},HttpRpcProvider.prototype.send=function(payload){var self=this;this.sendRequest(payload,function(request){self.handlers.forEach(function(handler){handler.call(self,formatJsonRpcMessage(request.responseText))})})},HttpRpcProvider.prototype.poll=function(payload,id){var self=this;this.sendRequest(payload,function(request){var parsed=JSON.parse(request.responseText);(parsed.result instanceof Array?0!==parsed.result.length:parsed.result)&&self.handlers.forEach(function(handler){handler.call(self,{_event:payload.call,_id:id,data:parsed.result})})})},Object.defineProperty(HttpRpcProvider.prototype,"onmessage",{set:function(handler){this.handlers.push(handler)}}),module.exports=HttpRpcProvider;
+function formatJsonRpcObject(object){return{jsonrpc:"2.0",method:object.call,params:object.args,id:object._id}}function formatJsonRpcMessage(message){var object=JSON.parse(message);return{_id:object.id,data:object.result,error:object.error}}var HttpRpcProvider=function(host){this.handlers=[],this.host=host};HttpRpcProvider.prototype.sendRequest=function(payload,cb){var data=formatJsonRpcObject(payload),request=new XMLHttpRequest;request.open("POST",this.host,!0),request.send(JSON.stringify(data)),request.onreadystatechange=function(){4===request.readyState&&cb&&cb(request)}},HttpRpcProvider.prototype.send=function(payload){var self=this;this.sendRequest(payload,function(request){self.handlers.forEach(function(handler){handler.call(self,formatJsonRpcMessage(request.responseText))})})},HttpRpcProvider.prototype.poll=function(payload,id){var self=this;this.sendRequest(payload,function(request){var parsed=JSON.parse(request.responseText);!parsed.error&&(parsed.result instanceof Array?0!==parsed.result.length:parsed.result)&&self.handlers.forEach(function(handler){handler.call(self,{_event:payload.call,_id:id,data:parsed.result})})})},Object.defineProperty(HttpRpcProvider.prototype,"onmessage",{set:function(handler){this.handlers.push(handler)}}),module.exports=HttpRpcProvider;
 },{}],2:[function(require,module,exports){
-function isPromise(o){return o instanceof Promise}function flattenPromise(obj){return obj instanceof Promise?Promise.resolve(obj):obj instanceof Array?new Promise(function(resolve){var promises=obj.map(function(o){return flattenPromise(o)});return Promise.all(promises).then(function(res){for(var i=0;i<obj.length;i++)obj[i]=res[i];resolve(obj)})}):obj instanceof Object?new Promise(function(resolve){var keys=Object.keys(obj),promises=keys.map(function(key){return flattenPromise(obj[key])});return Promise.all(promises).then(function(res){for(var i=0;i<keys.length;i++)obj[keys[i]]=res[i];resolve(obj)})}):Promise.resolve(obj)}function messageHandler(data){if(void 0!==data._event)return void web3.trigger(data._event,data._id,data.data);if(data._id){var cb=web3._callbacks[data._id];cb&&(cb.call(this,data.data),delete web3._callbacks[data._id])}}var ethWatch,shhWatch,ProviderManager,Filter,ethMethods=function(){var blockCall=function(args){return"string"==typeof args[0]?"blockByHash":"blockByNumber"},transactionCall=function(args){return"string"==typeof args[0]?"transactionByHash":"transactionByNumber"},uncleCall=function(args){return"string"==typeof args[0]?"uncleByHash":"uncleByNumber"},methods=[{name:"balanceAt",call:"balanceAt"},{name:"stateAt",call:"stateAt"},{name:"countAt",call:"countAt"},{name:"codeAt",call:"codeAt"},{name:"transact",call:"transact"},{name:"call",call:"call"},{name:"block",call:blockCall},{name:"transaction",call:transactionCall},{name:"uncle",call:uncleCall},{name:"compile",call:"compile"}];return methods},ethProperties=function(){return[{name:"coinbase",getter:"coinbase",setter:"setCoinbase"},{name:"listening",getter:"listening",setter:"setListening"},{name:"mining",getter:"mining",setter:"setMining"},{name:"gasPrice",getter:"gasPrice"},{name:"account",getter:"account"},{name:"accounts",getter:"accounts"},{name:"peerCount",getter:"peerCount"},{name:"defaultBlock",getter:"defaultBlock",setter:"setDefaultBlock"},{name:"number",getter:"number"}]},dbMethods=function(){return[{name:"put",call:"put"},{name:"get",call:"get"},{name:"putString",call:"putString"},{name:"getString",call:"getString"}]},shhMethods=function(){return[{name:"post",call:"post"},{name:"newIdentity",call:"newIdentity"},{name:"haveIdentity",call:"haveIdentity"},{name:"newGroup",call:"newGroup"},{name:"addToGroup",call:"addToGroup"}]},ethWatchMethods=function(){var newFilter=function(args){return"string"==typeof args[0]?"newFilterString":"newFilter"};return[{name:"newFilter",call:newFilter},{name:"uninstallFilter",call:"uninstallFilter"},{name:"getMessages",call:"getMessages"}]},shhWatchMethods=function(){return[{name:"newFilter",call:"shhNewFilter"},{name:"uninstallFilter",call:"shhUninstallFilter"},{name:"getMessage",call:"shhGetMessages"}]},setupMethods=function(obj,methods){methods.forEach(function(method){obj[method.name]=function(){return flattenPromise(Array.prototype.slice.call(arguments)).then(function(args){var call="function"==typeof method.call?method.call(args):method.call;return{call:call,args:args}}).then(function(request){return new Promise(function(resolve,reject){web3.provider.send(request,function(result){return result||"boolean"==typeof result?void resolve(result):void reject(result)})})}).catch(function(err){console.error(err)})}})},setupProperties=function(obj,properties){properties.forEach(function(property){var proto={};proto.get=function(){return new Promise(function(resolve,reject){web3.provider.send({call:property.getter},function(result){resolve(result)})})},property.setter&&(proto.set=function(val){return flattenPromise([val]).then(function(args){return new Promise(function(resolve){web3.provider.send({call:property.setter,args:args},function(result){result?resolve(result):reject(result)})})}).catch(function(err){console.error(err)})}),Object.defineProperty(obj,property.name,proto)})},web3={_callbacks:{},_events:{},providers:{},toHex:function(str){var i,n,hex="";for(i=0;i<str.length;i++)n=str.charCodeAt(i).toString(16),hex+=n.length<2?"0"+n:n;return hex},toAscii:function(hex){for(var code,str="",i=0,l=hex.length;l>i&&(code=hex.charCodeAt(i),0!==code);i+=2)str+=String.fromCharCode(parseInt(hex.substr(i,2),16));return str},toDecimal:function(val){return parseInt(val,16)},fromAscii:function(str,pad){pad=void 0===pad?32:pad;for(var hex=this.toHex(str);hex.length<2*pad;)hex+="00";return hex},eth:{prototype:Object(),watch:function(params){return new Filter(params,ethWatch)}},db:{prototype:Object()},shh:{prototype:Object(),watch:function(params){return new Filter(params,shhWatch)}},on:function(event,id,cb){return void 0===web3._events[event]&&(web3._events[event]={}),web3._events[event][id]=cb,this},off:function(event,id){return void 0!==web3._events[event]&&delete web3._events[event][id],this},trigger:function(event,id,data){var cb,callbacks=web3._events[event];callbacks&&callbacks[id]&&(cb=callbacks[id])(data)}},eth=web3.eth;setupMethods(eth,ethMethods()),setupProperties(eth,ethProperties()),setupMethods(web3.db,dbMethods()),setupMethods(web3.shh,shhMethods()),ethWatch={changed:"changed"},setupMethods(ethWatch,ethWatchMethods()),shhWatch={changed:"shhChanged"},setupMethods(shhWatch,shhWatchMethods()),ProviderManager=function(){var self,poll;this.queued=[],this.polls=[],this.ready=!1,this.provider=void 0,this.id=1,self=this,(poll=function(){self.provider&&self.provider.poll&&self.polls.forEach(function(data){data.data._id=self.id,self.id++,self.provider.poll(data.data,data.id)}),setTimeout(poll,12e3)})()},ProviderManager.prototype.send=function(data,cb){data._id=this.id,cb&&(web3._callbacks[data._id]=cb),data.args=data.args||[],this.id++,void 0!==this.provider?this.provider.send(data):(console.warn("provider is not set"),this.queued.push(data))},ProviderManager.prototype.set=function(provider){void 0!==this.provider&&void 0!==this.provider.unload&&this.provider.unload(),this.provider=provider,this.ready=!0},ProviderManager.prototype.sendQueued=function(){for(var i=0;this.queued.length;i++)this.send(this.queued[i])},ProviderManager.prototype.installed=function(){return void 0!==this.provider},ProviderManager.prototype.startPolling=function(data,pollId){this.provider&&this.provider.poll&&this.polls.push({data:data,id:pollId})},ProviderManager.prototype.stopPolling=function(pollId){var i,poll;for(i=this.polls.length;i--;)poll=this.polls[i],poll.id===pollId&&this.polls.splice(i,1)},web3.provider=new ProviderManager,web3.setProvider=function(provider){provider.onmessage=messageHandler,web3.provider.set(provider),web3.provider.sendQueued()},Filter=function(options,impl){this.impl=impl,this.callbacks=[];var self=this;this.promise=impl.newFilter(options),this.promise.then(function(id){self.id=id,web3.on(impl.changed,id,self.trigger.bind(self)),web3.provider.startPolling({call:impl.changed,args:[id]},id)})},Filter.prototype.arrived=function(callback){this.changed(callback)},Filter.prototype.changed=function(callback){var self=this;this.promise.then(function(id){self.callbacks.push(callback)})},Filter.prototype.trigger=function(messages){for(var i=0;i<this.callbacks.length;i++)this.callbacks[i].call(this,messages)},Filter.prototype.uninstall=function(){var self=this;this.promise.then(function(id){self.impl.uninstallFilter(id),web3.provider.stopPolling(id),web3.off(impl.changed,id)})},Filter.prototype.messages=function(){var self=this;return this.promise.then(function(id){return self.impl.getMessages(id)})},module.exports=web3;
+function isPromise(o){return o instanceof Promise}function flattenPromise(obj){return obj instanceof Promise?Promise.resolve(obj):obj instanceof Array?new Promise(function(resolve){var promises=obj.map(function(o){return flattenPromise(o)});return Promise.all(promises).then(function(res){for(var i=0;i<obj.length;i++)obj[i]=res[i];resolve(obj)})}):obj instanceof Object?new Promise(function(resolve){var keys=Object.keys(obj),promises=keys.map(function(key){return flattenPromise(obj[key])});return Promise.all(promises).then(function(res){for(var i=0;i<keys.length;i++)obj[keys[i]]=res[i];resolve(obj)})}):Promise.resolve(obj)}function messageHandler(data){if(void 0!==data._event)return void web3.trigger(data._event,data._id,data.data);if(data._id){var cb=web3._callbacks[data._id];cb&&(cb.call(this,data.error,data.data),delete web3._callbacks[data._id])}}var ethWatch,shhWatch,ProviderManager,Filter,ethMethods=function(){var blockCall=function(args){return"string"==typeof args[0]?"blockByHash":"blockByNumber"},transactionCall=function(args){return"string"==typeof args[0]?"transactionByHash":"transactionByNumber"},uncleCall=function(args){return"string"==typeof args[0]?"uncleByHash":"uncleByNumber"},methods=[{name:"balanceAt",call:"balanceAt"},{name:"stateAt",call:"stateAt"},{name:"countAt",call:"countAt"},{name:"codeAt",call:"codeAt"},{name:"transact",call:"transact"},{name:"call",call:"call"},{name:"block",call:blockCall},{name:"transaction",call:transactionCall},{name:"uncle",call:uncleCall},{name:"compile",call:"compile"}];return methods},ethProperties=function(){return[{name:"coinbase",getter:"coinbase",setter:"setCoinbase"},{name:"listening",getter:"listening",setter:"setListening"},{name:"mining",getter:"mining",setter:"setMining"},{name:"gasPrice",getter:"gasPrice"},{name:"account",getter:"account"},{name:"accounts",getter:"accounts"},{name:"peerCount",getter:"peerCount"},{name:"defaultBlock",getter:"defaultBlock",setter:"setDefaultBlock"},{name:"number",getter:"number"}]},dbMethods=function(){return[{name:"put",call:"put"},{name:"get",call:"get"},{name:"putString",call:"putString"},{name:"getString",call:"getString"}]},shhMethods=function(){return[{name:"post",call:"post"},{name:"newIdentity",call:"newIdentity"},{name:"haveIdentity",call:"haveIdentity"},{name:"newGroup",call:"newGroup"},{name:"addToGroup",call:"addToGroup"}]},ethWatchMethods=function(){var newFilter=function(args){return"string"==typeof args[0]?"newFilterString":"newFilter"};return[{name:"newFilter",call:newFilter},{name:"uninstallFilter",call:"uninstallFilter"},{name:"getMessages",call:"getMessages"}]},shhWatchMethods=function(){return[{name:"newFilter",call:"shhNewFilter"},{name:"uninstallFilter",call:"shhUninstallFilter"},{name:"getMessage",call:"shhGetMessages"}]},setupMethods=function(obj,methods){methods.forEach(function(method){obj[method.name]=function(){return flattenPromise(Array.prototype.slice.call(arguments)).then(function(args){var call="function"==typeof method.call?method.call(args):method.call;return{call:call,args:args}}).then(function(request){return new Promise(function(resolve,reject){web3.provider.send(request,function(err,result){return err?void reject(err):void resolve(result)})})}).catch(function(err){console.error(err)})}})},setupProperties=function(obj,properties){properties.forEach(function(property){var proto={};proto.get=function(){return new Promise(function(resolve,reject){web3.provider.send({call:property.getter},function(err,result){return err?void reject(err):void resolve(result)})})},property.setter&&(proto.set=function(val){return flattenPromise([val]).then(function(args){return new Promise(function(resolve){web3.provider.send({call:property.setter,args:args},function(err,result){return err?void reject(err):void resolve(result)})})}).catch(function(err){console.error(err)})}),Object.defineProperty(obj,property.name,proto)})},web3={_callbacks:{},_events:{},providers:{},toHex:function(str){var i,n,hex="";for(i=0;i<str.length;i++)n=str.charCodeAt(i).toString(16),hex+=n.length<2?"0"+n:n;return hex},toAscii:function(hex){var code,str="",i=0,l=hex.length;for("0x"===hex.substring(0,2)&&(i=2);l>i&&(code=hex.charCodeAt(i),0!==code);i+=2)str+=String.fromCharCode(parseInt(hex.substr(i,2),16));return str},toDecimal:function(val){return parseInt(val,16)},fromAscii:function(str,pad){pad=void 0===pad?32:pad;for(var hex=this.toHex(str);hex.length<2*pad;)hex+="00";return"0x"+hex},eth:{prototype:Object(),watch:function(params){return new Filter(params,ethWatch)}},db:{prototype:Object()},shh:{prototype:Object(),watch:function(params){return new Filter(params,shhWatch)}},on:function(event,id,cb){return void 0===web3._events[event]&&(web3._events[event]={}),web3._events[event][id]=cb,this},off:function(event,id){return void 0!==web3._events[event]&&delete web3._events[event][id],this},trigger:function(event,id,data){var cb,callbacks=web3._events[event];callbacks&&callbacks[id]&&(cb=callbacks[id])(data)}},eth=web3.eth;setupMethods(eth,ethMethods()),setupProperties(eth,ethProperties()),setupMethods(web3.db,dbMethods()),setupMethods(web3.shh,shhMethods()),ethWatch={changed:"changed"},setupMethods(ethWatch,ethWatchMethods()),shhWatch={changed:"shhChanged"},setupMethods(shhWatch,shhWatchMethods()),ProviderManager=function(){var self,poll;this.queued=[],this.polls=[],this.ready=!1,this.provider=void 0,this.id=1,self=this,(poll=function(){self.provider&&self.provider.poll&&self.polls.forEach(function(data){data.data._id=self.id,self.id++,self.provider.poll(data.data,data.id)}),setTimeout(poll,12e3)})()},ProviderManager.prototype.send=function(data,cb){data._id=this.id,cb&&(web3._callbacks[data._id]=cb),data.args=data.args||[],this.id++,void 0!==this.provider?this.provider.send(data):(console.warn("provider is not set"),this.queued.push(data))},ProviderManager.prototype.set=function(provider){void 0!==this.provider&&void 0!==this.provider.unload&&this.provider.unload(),this.provider=provider,this.ready=!0},ProviderManager.prototype.sendQueued=function(){for(var i=0;this.queued.length;i++)this.send(this.queued[i])},ProviderManager.prototype.installed=function(){return void 0!==this.provider},ProviderManager.prototype.startPolling=function(data,pollId){this.provider&&this.provider.poll&&this.polls.push({data:data,id:pollId})},ProviderManager.prototype.stopPolling=function(pollId){var i,poll;for(i=this.polls.length;i--;)poll=this.polls[i],poll.id===pollId&&this.polls.splice(i,1)},web3.provider=new ProviderManager,web3.setProvider=function(provider){provider.onmessage=messageHandler,web3.provider.set(provider),web3.provider.sendQueued()},Filter=function(options,impl){this.impl=impl,this.callbacks=[];var self=this;this.promise=impl.newFilter(options),this.promise.then(function(id){self.id=id,web3.on(impl.changed,id,self.trigger.bind(self)),web3.provider.startPolling({call:impl.changed,args:[id]},id)})},Filter.prototype.arrived=function(callback){this.changed(callback)},Filter.prototype.changed=function(callback){var self=this;this.promise.then(function(id){self.callbacks.push(callback)})},Filter.prototype.trigger=function(messages){for(var i=0;i<this.callbacks.length;i++)this.callbacks[i].call(this,messages)},Filter.prototype.uninstall=function(){var self=this;this.promise.then(function(id){self.impl.uninstallFilter(id),web3.provider.stopPolling(id),web3.off(impl.changed,id)})},Filter.prototype.messages=function(){var self=this;return this.promise.then(function(id){return self.impl.getMessages(id)})},module.exports=web3;
 },{}],3:[function(require,module,exports){
 var QtProvider=function(){this.handlers=[];var self=this;navigator.qt.onmessage=function(message){self.handlers.forEach(function(handler){handler.call(self,JSON.parse(message.data))})}};QtProvider.prototype.send=function(payload){navigator.qt.postMessage(JSON.stringify(payload))},Object.defineProperty(QtProvider.prototype,"onmessage",{set:function(handler){this.handlers.push(handler)}}),module.exports=QtProvider;
 },{}],4:[function(require,module,exports){
diff --git a/dist/ethereum.js.map b/dist/ethereum.js.map
index 7de73f5d6..c9047f3eb 100644
--- a/dist/ethereum.js.map
+++ b/dist/ethereum.js.map
@@ -14,8 +14,8 @@
   "sourceRoot": "",
   "sourcesContent": [
     "(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})",
-    "function formatJsonRpcObject(object){return{jsonrpc:\"2.0\",method:object.call,params:object.args,id:object._id}}function formatJsonRpcMessage(message){var object=JSON.parse(message);return{_id:object.id,data:object.result}}var HttpRpcProvider=function(host){this.handlers=[],this.host=host};HttpRpcProvider.prototype.sendRequest=function(payload,cb){var data=formatJsonRpcObject(payload),request=new XMLHttpRequest;request.open(\"POST\",this.host,!0),request.send(JSON.stringify(data)),request.onreadystatechange=function(){4===request.readyState&&cb&&cb(request)}},HttpRpcProvider.prototype.send=function(payload){var self=this;this.sendRequest(payload,function(request){self.handlers.forEach(function(handler){handler.call(self,formatJsonRpcMessage(request.responseText))})})},HttpRpcProvider.prototype.poll=function(payload,id){var self=this;this.sendRequest(payload,function(request){var parsed=JSON.parse(request.responseText);(parsed.result instanceof Array?0!==parsed.result.length:parsed.result)&&self.handlers.forEach(function(handler){handler.call(self,{_event:payload.call,_id:id,data:parsed.result})})})},Object.defineProperty(HttpRpcProvider.prototype,\"onmessage\",{set:function(handler){this.handlers.push(handler)}}),module.exports=HttpRpcProvider;",
-    "function isPromise(o){return o instanceof Promise}function flattenPromise(obj){return obj instanceof Promise?Promise.resolve(obj):obj instanceof Array?new Promise(function(resolve){var promises=obj.map(function(o){return flattenPromise(o)});return Promise.all(promises).then(function(res){for(var i=0;i<obj.length;i++)obj[i]=res[i];resolve(obj)})}):obj instanceof Object?new Promise(function(resolve){var keys=Object.keys(obj),promises=keys.map(function(key){return flattenPromise(obj[key])});return Promise.all(promises).then(function(res){for(var i=0;i<keys.length;i++)obj[keys[i]]=res[i];resolve(obj)})}):Promise.resolve(obj)}function messageHandler(data){if(void 0!==data._event)return void web3.trigger(data._event,data._id,data.data);if(data._id){var cb=web3._callbacks[data._id];cb&&(cb.call(this,data.data),delete web3._callbacks[data._id])}}var ethWatch,shhWatch,ProviderManager,Filter,ethMethods=function(){var blockCall=function(args){return\"string\"==typeof args[0]?\"blockByHash\":\"blockByNumber\"},transactionCall=function(args){return\"string\"==typeof args[0]?\"transactionByHash\":\"transactionByNumber\"},uncleCall=function(args){return\"string\"==typeof args[0]?\"uncleByHash\":\"uncleByNumber\"},methods=[{name:\"balanceAt\",call:\"balanceAt\"},{name:\"stateAt\",call:\"stateAt\"},{name:\"countAt\",call:\"countAt\"},{name:\"codeAt\",call:\"codeAt\"},{name:\"transact\",call:\"transact\"},{name:\"call\",call:\"call\"},{name:\"block\",call:blockCall},{name:\"transaction\",call:transactionCall},{name:\"uncle\",call:uncleCall},{name:\"compile\",call:\"compile\"}];return methods},ethProperties=function(){return[{name:\"coinbase\",getter:\"coinbase\",setter:\"setCoinbase\"},{name:\"listening\",getter:\"listening\",setter:\"setListening\"},{name:\"mining\",getter:\"mining\",setter:\"setMining\"},{name:\"gasPrice\",getter:\"gasPrice\"},{name:\"account\",getter:\"account\"},{name:\"accounts\",getter:\"accounts\"},{name:\"peerCount\",getter:\"peerCount\"},{name:\"defaultBlock\",getter:\"defaultBlock\",setter:\"setDefaultBlock\"},{name:\"number\",getter:\"number\"}]},dbMethods=function(){return[{name:\"put\",call:\"put\"},{name:\"get\",call:\"get\"},{name:\"putString\",call:\"putString\"},{name:\"getString\",call:\"getString\"}]},shhMethods=function(){return[{name:\"post\",call:\"post\"},{name:\"newIdentity\",call:\"newIdentity\"},{name:\"haveIdentity\",call:\"haveIdentity\"},{name:\"newGroup\",call:\"newGroup\"},{name:\"addToGroup\",call:\"addToGroup\"}]},ethWatchMethods=function(){var newFilter=function(args){return\"string\"==typeof args[0]?\"newFilterString\":\"newFilter\"};return[{name:\"newFilter\",call:newFilter},{name:\"uninstallFilter\",call:\"uninstallFilter\"},{name:\"getMessages\",call:\"getMessages\"}]},shhWatchMethods=function(){return[{name:\"newFilter\",call:\"shhNewFilter\"},{name:\"uninstallFilter\",call:\"shhUninstallFilter\"},{name:\"getMessage\",call:\"shhGetMessages\"}]},setupMethods=function(obj,methods){methods.forEach(function(method){obj[method.name]=function(){return flattenPromise(Array.prototype.slice.call(arguments)).then(function(args){var call=\"function\"==typeof method.call?method.call(args):method.call;return{call:call,args:args}}).then(function(request){return new Promise(function(resolve,reject){web3.provider.send(request,function(result){return result||\"boolean\"==typeof result?void resolve(result):void reject(result)})})}).catch(function(err){console.error(err)})}})},setupProperties=function(obj,properties){properties.forEach(function(property){var proto={};proto.get=function(){return new Promise(function(resolve,reject){web3.provider.send({call:property.getter},function(result){resolve(result)})})},property.setter&&(proto.set=function(val){return flattenPromise([val]).then(function(args){return new Promise(function(resolve){web3.provider.send({call:property.setter,args:args},function(result){result?resolve(result):reject(result)})})}).catch(function(err){console.error(err)})}),Object.defineProperty(obj,property.name,proto)})},web3={_callbacks:{},_events:{},providers:{},toHex:function(str){var i,n,hex=\"\";for(i=0;i<str.length;i++)n=str.charCodeAt(i).toString(16),hex+=n.length<2?\"0\"+n:n;return hex},toAscii:function(hex){for(var code,str=\"\",i=0,l=hex.length;l>i&&(code=hex.charCodeAt(i),0!==code);i+=2)str+=String.fromCharCode(parseInt(hex.substr(i,2),16));return str},toDecimal:function(val){return parseInt(val,16)},fromAscii:function(str,pad){pad=void 0===pad?32:pad;for(var hex=this.toHex(str);hex.length<2*pad;)hex+=\"00\";return hex},eth:{prototype:Object(),watch:function(params){return new Filter(params,ethWatch)}},db:{prototype:Object()},shh:{prototype:Object(),watch:function(params){return new Filter(params,shhWatch)}},on:function(event,id,cb){return void 0===web3._events[event]&&(web3._events[event]={}),web3._events[event][id]=cb,this},off:function(event,id){return void 0!==web3._events[event]&&delete web3._events[event][id],this},trigger:function(event,id,data){var cb,callbacks=web3._events[event];callbacks&&callbacks[id]&&(cb=callbacks[id])(data)}},eth=web3.eth;setupMethods(eth,ethMethods()),setupProperties(eth,ethProperties()),setupMethods(web3.db,dbMethods()),setupMethods(web3.shh,shhMethods()),ethWatch={changed:\"changed\"},setupMethods(ethWatch,ethWatchMethods()),shhWatch={changed:\"shhChanged\"},setupMethods(shhWatch,shhWatchMethods()),ProviderManager=function(){var self,poll;this.queued=[],this.polls=[],this.ready=!1,this.provider=void 0,this.id=1,self=this,(poll=function(){self.provider&&self.provider.poll&&self.polls.forEach(function(data){data.data._id=self.id,self.id++,self.provider.poll(data.data,data.id)}),setTimeout(poll,12e3)})()},ProviderManager.prototype.send=function(data,cb){data._id=this.id,cb&&(web3._callbacks[data._id]=cb),data.args=data.args||[],this.id++,void 0!==this.provider?this.provider.send(data):(console.warn(\"provider is not set\"),this.queued.push(data))},ProviderManager.prototype.set=function(provider){void 0!==this.provider&&void 0!==this.provider.unload&&this.provider.unload(),this.provider=provider,this.ready=!0},ProviderManager.prototype.sendQueued=function(){for(var i=0;this.queued.length;i++)this.send(this.queued[i])},ProviderManager.prototype.installed=function(){return void 0!==this.provider},ProviderManager.prototype.startPolling=function(data,pollId){this.provider&&this.provider.poll&&this.polls.push({data:data,id:pollId})},ProviderManager.prototype.stopPolling=function(pollId){var i,poll;for(i=this.polls.length;i--;)poll=this.polls[i],poll.id===pollId&&this.polls.splice(i,1)},web3.provider=new ProviderManager,web3.setProvider=function(provider){provider.onmessage=messageHandler,web3.provider.set(provider),web3.provider.sendQueued()},Filter=function(options,impl){this.impl=impl,this.callbacks=[];var self=this;this.promise=impl.newFilter(options),this.promise.then(function(id){self.id=id,web3.on(impl.changed,id,self.trigger.bind(self)),web3.provider.startPolling({call:impl.changed,args:[id]},id)})},Filter.prototype.arrived=function(callback){this.changed(callback)},Filter.prototype.changed=function(callback){var self=this;this.promise.then(function(id){self.callbacks.push(callback)})},Filter.prototype.trigger=function(messages){for(var i=0;i<this.callbacks.length;i++)this.callbacks[i].call(this,messages)},Filter.prototype.uninstall=function(){var self=this;this.promise.then(function(id){self.impl.uninstallFilter(id),web3.provider.stopPolling(id),web3.off(impl.changed,id)})},Filter.prototype.messages=function(){var self=this;return this.promise.then(function(id){return self.impl.getMessages(id)})},module.exports=web3;",
+    "function formatJsonRpcObject(object){return{jsonrpc:\"2.0\",method:object.call,params:object.args,id:object._id}}function formatJsonRpcMessage(message){var object=JSON.parse(message);return{_id:object.id,data:object.result,error:object.error}}var HttpRpcProvider=function(host){this.handlers=[],this.host=host};HttpRpcProvider.prototype.sendRequest=function(payload,cb){var data=formatJsonRpcObject(payload),request=new XMLHttpRequest;request.open(\"POST\",this.host,!0),request.send(JSON.stringify(data)),request.onreadystatechange=function(){4===request.readyState&&cb&&cb(request)}},HttpRpcProvider.prototype.send=function(payload){var self=this;this.sendRequest(payload,function(request){self.handlers.forEach(function(handler){handler.call(self,formatJsonRpcMessage(request.responseText))})})},HttpRpcProvider.prototype.poll=function(payload,id){var self=this;this.sendRequest(payload,function(request){var parsed=JSON.parse(request.responseText);!parsed.error&&(parsed.result instanceof Array?0!==parsed.result.length:parsed.result)&&self.handlers.forEach(function(handler){handler.call(self,{_event:payload.call,_id:id,data:parsed.result})})})},Object.defineProperty(HttpRpcProvider.prototype,\"onmessage\",{set:function(handler){this.handlers.push(handler)}}),module.exports=HttpRpcProvider;",
+    "function isPromise(o){return o instanceof Promise}function flattenPromise(obj){return obj instanceof Promise?Promise.resolve(obj):obj instanceof Array?new Promise(function(resolve){var promises=obj.map(function(o){return flattenPromise(o)});return Promise.all(promises).then(function(res){for(var i=0;i<obj.length;i++)obj[i]=res[i];resolve(obj)})}):obj instanceof Object?new Promise(function(resolve){var keys=Object.keys(obj),promises=keys.map(function(key){return flattenPromise(obj[key])});return Promise.all(promises).then(function(res){for(var i=0;i<keys.length;i++)obj[keys[i]]=res[i];resolve(obj)})}):Promise.resolve(obj)}function messageHandler(data){if(void 0!==data._event)return void web3.trigger(data._event,data._id,data.data);if(data._id){var cb=web3._callbacks[data._id];cb&&(cb.call(this,data.error,data.data),delete web3._callbacks[data._id])}}var ethWatch,shhWatch,ProviderManager,Filter,ethMethods=function(){var blockCall=function(args){return\"string\"==typeof args[0]?\"blockByHash\":\"blockByNumber\"},transactionCall=function(args){return\"string\"==typeof args[0]?\"transactionByHash\":\"transactionByNumber\"},uncleCall=function(args){return\"string\"==typeof args[0]?\"uncleByHash\":\"uncleByNumber\"},methods=[{name:\"balanceAt\",call:\"balanceAt\"},{name:\"stateAt\",call:\"stateAt\"},{name:\"countAt\",call:\"countAt\"},{name:\"codeAt\",call:\"codeAt\"},{name:\"transact\",call:\"transact\"},{name:\"call\",call:\"call\"},{name:\"block\",call:blockCall},{name:\"transaction\",call:transactionCall},{name:\"uncle\",call:uncleCall},{name:\"compile\",call:\"compile\"}];return methods},ethProperties=function(){return[{name:\"coinbase\",getter:\"coinbase\",setter:\"setCoinbase\"},{name:\"listening\",getter:\"listening\",setter:\"setListening\"},{name:\"mining\",getter:\"mining\",setter:\"setMining\"},{name:\"gasPrice\",getter:\"gasPrice\"},{name:\"account\",getter:\"account\"},{name:\"accounts\",getter:\"accounts\"},{name:\"peerCount\",getter:\"peerCount\"},{name:\"defaultBlock\",getter:\"defaultBlock\",setter:\"setDefaultBlock\"},{name:\"number\",getter:\"number\"}]},dbMethods=function(){return[{name:\"put\",call:\"put\"},{name:\"get\",call:\"get\"},{name:\"putString\",call:\"putString\"},{name:\"getString\",call:\"getString\"}]},shhMethods=function(){return[{name:\"post\",call:\"post\"},{name:\"newIdentity\",call:\"newIdentity\"},{name:\"haveIdentity\",call:\"haveIdentity\"},{name:\"newGroup\",call:\"newGroup\"},{name:\"addToGroup\",call:\"addToGroup\"}]},ethWatchMethods=function(){var newFilter=function(args){return\"string\"==typeof args[0]?\"newFilterString\":\"newFilter\"};return[{name:\"newFilter\",call:newFilter},{name:\"uninstallFilter\",call:\"uninstallFilter\"},{name:\"getMessages\",call:\"getMessages\"}]},shhWatchMethods=function(){return[{name:\"newFilter\",call:\"shhNewFilter\"},{name:\"uninstallFilter\",call:\"shhUninstallFilter\"},{name:\"getMessage\",call:\"shhGetMessages\"}]},setupMethods=function(obj,methods){methods.forEach(function(method){obj[method.name]=function(){return flattenPromise(Array.prototype.slice.call(arguments)).then(function(args){var call=\"function\"==typeof method.call?method.call(args):method.call;return{call:call,args:args}}).then(function(request){return new Promise(function(resolve,reject){web3.provider.send(request,function(err,result){return err?void reject(err):void resolve(result)})})}).catch(function(err){console.error(err)})}})},setupProperties=function(obj,properties){properties.forEach(function(property){var proto={};proto.get=function(){return new Promise(function(resolve,reject){web3.provider.send({call:property.getter},function(err,result){return err?void reject(err):void resolve(result)})})},property.setter&&(proto.set=function(val){return flattenPromise([val]).then(function(args){return new Promise(function(resolve){web3.provider.send({call:property.setter,args:args},function(err,result){return err?void reject(err):void resolve(result)})})}).catch(function(err){console.error(err)})}),Object.defineProperty(obj,property.name,proto)})},web3={_callbacks:{},_events:{},providers:{},toHex:function(str){var i,n,hex=\"\";for(i=0;i<str.length;i++)n=str.charCodeAt(i).toString(16),hex+=n.length<2?\"0\"+n:n;return hex},toAscii:function(hex){var code,str=\"\",i=0,l=hex.length;for(\"0x\"===hex.substring(0,2)&&(i=2);l>i&&(code=hex.charCodeAt(i),0!==code);i+=2)str+=String.fromCharCode(parseInt(hex.substr(i,2),16));return str},toDecimal:function(val){return parseInt(val,16)},fromAscii:function(str,pad){pad=void 0===pad?32:pad;for(var hex=this.toHex(str);hex.length<2*pad;)hex+=\"00\";return\"0x\"+hex},eth:{prototype:Object(),watch:function(params){return new Filter(params,ethWatch)}},db:{prototype:Object()},shh:{prototype:Object(),watch:function(params){return new Filter(params,shhWatch)}},on:function(event,id,cb){return void 0===web3._events[event]&&(web3._events[event]={}),web3._events[event][id]=cb,this},off:function(event,id){return void 0!==web3._events[event]&&delete web3._events[event][id],this},trigger:function(event,id,data){var cb,callbacks=web3._events[event];callbacks&&callbacks[id]&&(cb=callbacks[id])(data)}},eth=web3.eth;setupMethods(eth,ethMethods()),setupProperties(eth,ethProperties()),setupMethods(web3.db,dbMethods()),setupMethods(web3.shh,shhMethods()),ethWatch={changed:\"changed\"},setupMethods(ethWatch,ethWatchMethods()),shhWatch={changed:\"shhChanged\"},setupMethods(shhWatch,shhWatchMethods()),ProviderManager=function(){var self,poll;this.queued=[],this.polls=[],this.ready=!1,this.provider=void 0,this.id=1,self=this,(poll=function(){self.provider&&self.provider.poll&&self.polls.forEach(function(data){data.data._id=self.id,self.id++,self.provider.poll(data.data,data.id)}),setTimeout(poll,12e3)})()},ProviderManager.prototype.send=function(data,cb){data._id=this.id,cb&&(web3._callbacks[data._id]=cb),data.args=data.args||[],this.id++,void 0!==this.provider?this.provider.send(data):(console.warn(\"provider is not set\"),this.queued.push(data))},ProviderManager.prototype.set=function(provider){void 0!==this.provider&&void 0!==this.provider.unload&&this.provider.unload(),this.provider=provider,this.ready=!0},ProviderManager.prototype.sendQueued=function(){for(var i=0;this.queued.length;i++)this.send(this.queued[i])},ProviderManager.prototype.installed=function(){return void 0!==this.provider},ProviderManager.prototype.startPolling=function(data,pollId){this.provider&&this.provider.poll&&this.polls.push({data:data,id:pollId})},ProviderManager.prototype.stopPolling=function(pollId){var i,poll;for(i=this.polls.length;i--;)poll=this.polls[i],poll.id===pollId&&this.polls.splice(i,1)},web3.provider=new ProviderManager,web3.setProvider=function(provider){provider.onmessage=messageHandler,web3.provider.set(provider),web3.provider.sendQueued()},Filter=function(options,impl){this.impl=impl,this.callbacks=[];var self=this;this.promise=impl.newFilter(options),this.promise.then(function(id){self.id=id,web3.on(impl.changed,id,self.trigger.bind(self)),web3.provider.startPolling({call:impl.changed,args:[id]},id)})},Filter.prototype.arrived=function(callback){this.changed(callback)},Filter.prototype.changed=function(callback){var self=this;this.promise.then(function(id){self.callbacks.push(callback)})},Filter.prototype.trigger=function(messages){for(var i=0;i<this.callbacks.length;i++)this.callbacks[i].call(this,messages)},Filter.prototype.uninstall=function(){var self=this;this.promise.then(function(id){self.impl.uninstallFilter(id),web3.provider.stopPolling(id),web3.off(impl.changed,id)})},Filter.prototype.messages=function(){var self=this;return this.promise.then(function(id){return self.impl.getMessages(id)})},module.exports=web3;",
     "var QtProvider=function(){this.handlers=[];var self=this;navigator.qt.onmessage=function(message){self.handlers.forEach(function(handler){handler.call(self,JSON.parse(message.data))})}};QtProvider.prototype.send=function(payload){navigator.qt.postMessage(JSON.stringify(payload))},Object.defineProperty(QtProvider.prototype,\"onmessage\",{set:function(handler){this.handlers.push(handler)}}),module.exports=QtProvider;",
     "var WebSocketProvider=function(host){this.handlers=[],this.queued=[],this.ready=!1,this.ws=new WebSocket(host);var self=this;this.ws.onmessage=function(event){for(var i=0;i<self.handlers.length;i++)self.handlers[i].call(self,JSON.parse(event.data),event)},this.ws.onopen=function(){self.ready=!0;for(var i=0;i<self.queued.length;i++)self.send(self.queued[i])}};WebSocketProvider.prototype.send=function(payload){if(this.ready){var data=JSON.stringify(payload);this.ws.send(data)}else this.queued.push(payload)},WebSocketProvider.prototype.onMessage=function(handler){this.handlers.push(handler)},WebSocketProvider.prototype.unload=function(){this.ws.close()},Object.defineProperty(WebSocketProvider.prototype,\"onmessage\",{set:function(provider){this.onMessage(provider)}}),module.exports=WebSocketProvider;",
     "var web3=require(\"./lib/main\");web3.providers.WebSocketProvider=require(\"./lib/websocket\"),web3.providers.HttpRpcProvider=require(\"./lib/httprpc\"),web3.providers.QtProvider=require(\"./lib/qt\"),module.exports=web3;"
diff --git a/dist/ethereum.min.js b/dist/ethereum.min.js
index ac88d8f7a..bd55bc4eb 100644
--- a/dist/ethereum.min.js
+++ b/dist/ethereum.min.js
@@ -1 +1 @@
-require=function t(e,n,r){function i(s,a){if(!n[s]){if(!e[s]){var c="function"==typeof require&&require;if(!a&&c)return c(s,!0);if(o)return o(s,!0);var l=new Error("Cannot find module '"+s+"'");throw l.code="MODULE_NOT_FOUND",l}var u=n[s]={exports:{}};e[s][0].call(u.exports,function(t){var n=e[s][1][t];return i(n?n:t)},u,u.exports,t,e,n,r)}return n[s].exports}for(var o="function"==typeof require&&require,s=0;s<r.length;s++)i(r[s]);return i}({1:[function(t,e){function n(t){return{jsonrpc:"2.0",method:t.call,params:t.args,id:t._id}}function r(t){var e=JSON.parse(t);return{_id:e.id,data:e.result}}var i=function(t){this.handlers=[],this.host=t};i.prototype.sendRequest=function(t,e){var r=n(t),i=new XMLHttpRequest;i.open("POST",this.host,!0),i.send(JSON.stringify(r)),i.onreadystatechange=function(){4===i.readyState&&e&&e(i)}},i.prototype.send=function(t){var e=this;this.sendRequest(t,function(t){e.handlers.forEach(function(n){n.call(e,r(t.responseText))})})},i.prototype.poll=function(t,e){var n=this;this.sendRequest(t,function(r){var i=JSON.parse(r.responseText);(i.result instanceof Array?0!==i.result.length:i.result)&&n.handlers.forEach(function(r){r.call(n,{_event:t.call,_id:e,data:i.result})})})},Object.defineProperty(i.prototype,"onmessage",{set:function(t){this.handlers.push(t)}}),e.exports=i},{}],2:[function(t,e){function n(t){return t instanceof Promise?Promise.resolve(t):t instanceof Array?new Promise(function(e){var r=t.map(function(t){return n(t)});return Promise.all(r).then(function(n){for(var r=0;r<t.length;r++)t[r]=n[r];e(t)})}):t instanceof Object?new Promise(function(e){var r=Object.keys(t),i=r.map(function(e){return n(t[e])});return Promise.all(i).then(function(n){for(var i=0;i<r.length;i++)t[r[i]]=n[i];e(t)})}):Promise.resolve(t)}function r(t){if(void 0!==t._event)return void v.trigger(t._event,t._id,t.data);if(t._id){var e=v._callbacks[t._id];e&&(e.call(this,t.data),delete v._callbacks[t._id])}}var i,o,s,a,c=function(){var t=function(t){return"string"==typeof t[0]?"blockByHash":"blockByNumber"},e=function(t){return"string"==typeof t[0]?"transactionByHash":"transactionByNumber"},n=function(t){return"string"==typeof t[0]?"uncleByHash":"uncleByNumber"},r=[{name:"balanceAt",call:"balanceAt"},{name:"stateAt",call:"stateAt"},{name:"countAt",call:"countAt"},{name:"codeAt",call:"codeAt"},{name:"transact",call:"transact"},{name:"call",call:"call"},{name:"block",call:t},{name:"transaction",call:e},{name:"uncle",call:n},{name:"compile",call:"compile"}];return r},l=function(){return[{name:"coinbase",getter:"coinbase",setter:"setCoinbase"},{name:"listening",getter:"listening",setter:"setListening"},{name:"mining",getter:"mining",setter:"setMining"},{name:"gasPrice",getter:"gasPrice"},{name:"account",getter:"account"},{name:"accounts",getter:"accounts"},{name:"peerCount",getter:"peerCount"},{name:"defaultBlock",getter:"defaultBlock",setter:"setDefaultBlock"},{name:"number",getter:"number"}]},u=function(){return[{name:"put",call:"put"},{name:"get",call:"get"},{name:"putString",call:"putString"},{name:"getString",call:"getString"}]},p=function(){return[{name:"post",call:"post"},{name:"newIdentity",call:"newIdentity"},{name:"haveIdentity",call:"haveIdentity"},{name:"newGroup",call:"newGroup"},{name:"addToGroup",call:"addToGroup"}]},d=function(){var t=function(t){return"string"==typeof t[0]?"newFilterString":"newFilter"};return[{name:"newFilter",call:t},{name:"uninstallFilter",call:"uninstallFilter"},{name:"getMessages",call:"getMessages"}]},h=function(){return[{name:"newFilter",call:"shhNewFilter"},{name:"uninstallFilter",call:"shhUninstallFilter"},{name:"getMessage",call:"shhGetMessages"}]},f=function(t,e){e.forEach(function(e){t[e.name]=function(){return n(Array.prototype.slice.call(arguments)).then(function(t){var n="function"==typeof e.call?e.call(t):e.call;return{call:n,args:t}}).then(function(t){return new Promise(function(e,n){v.provider.send(t,function(t){return t||"boolean"==typeof t?void e(t):void n(t)})})}).catch(function(t){console.error(t)})}})},g=function(t,e){e.forEach(function(e){var r={};r.get=function(){return new Promise(function(t){v.provider.send({call:e.getter},function(e){t(e)})})},e.setter&&(r.set=function(t){return n([t]).then(function(t){return new Promise(function(n){v.provider.send({call:e.setter,args:t},function(t){t?n(t):reject(t)})})}).catch(function(t){console.error(t)})}),Object.defineProperty(t,e.name,r)})},v={_callbacks:{},_events:{},providers:{},toHex:function(t){var e,n,r="";for(e=0;e<t.length;e++)n=t.charCodeAt(e).toString(16),r+=n.length<2?"0"+n:n;return r},toAscii:function(t){for(var e,n="",r=0,i=t.length;i>r&&(e=t.charCodeAt(r),0!==e);r+=2)n+=String.fromCharCode(parseInt(t.substr(r,2),16));return n},toDecimal:function(t){return parseInt(t,16)},fromAscii:function(t,e){e=void 0===e?32:e;for(var n=this.toHex(t);n.length<2*e;)n+="00";return n},eth:{prototype:Object(),watch:function(t){return new a(t,i)}},db:{prototype:Object()},shh:{prototype:Object(),watch:function(t){return new a(t,o)}},on:function(t,e,n){return void 0===v._events[t]&&(v._events[t]={}),v._events[t][e]=n,this},off:function(t,e){return void 0!==v._events[t]&&delete v._events[t][e],this},trigger:function(t,e,n){var r,i=v._events[t];i&&i[e]&&(r=i[e])(n)}},m=v.eth;f(m,c()),g(m,l()),f(v.db,u()),f(v.shh,p()),i={changed:"changed"},f(i,d()),o={changed:"shhChanged"},f(o,h()),s=function(){var t,e;this.queued=[],this.polls=[],this.ready=!1,this.provider=void 0,this.id=1,t=this,(e=function(){t.provider&&t.provider.poll&&t.polls.forEach(function(e){e.data._id=t.id,t.id++,t.provider.poll(e.data,e.id)}),setTimeout(e,12e3)})()},s.prototype.send=function(t,e){t._id=this.id,e&&(v._callbacks[t._id]=e),t.args=t.args||[],this.id++,void 0!==this.provider?this.provider.send(t):(console.warn("provider is not set"),this.queued.push(t))},s.prototype.set=function(t){void 0!==this.provider&&void 0!==this.provider.unload&&this.provider.unload(),this.provider=t,this.ready=!0},s.prototype.sendQueued=function(){for(var t=0;this.queued.length;t++)this.send(this.queued[t])},s.prototype.installed=function(){return void 0!==this.provider},s.prototype.startPolling=function(t,e){this.provider&&this.provider.poll&&this.polls.push({data:t,id:e})},s.prototype.stopPolling=function(t){var e,n;for(e=this.polls.length;e--;)n=this.polls[e],n.id===t&&this.polls.splice(e,1)},v.provider=new s,v.setProvider=function(t){t.onmessage=r,v.provider.set(t),v.provider.sendQueued()},a=function(t,e){this.impl=e,this.callbacks=[];var n=this;this.promise=e.newFilter(t),this.promise.then(function(t){n.id=t,v.on(e.changed,t,n.trigger.bind(n)),v.provider.startPolling({call:e.changed,args:[t]},t)})},a.prototype.arrived=function(t){this.changed(t)},a.prototype.changed=function(t){var e=this;this.promise.then(function(){e.callbacks.push(t)})},a.prototype.trigger=function(t){for(var e=0;e<this.callbacks.length;e++)this.callbacks[e].call(this,t)},a.prototype.uninstall=function(){var t=this;this.promise.then(function(e){t.impl.uninstallFilter(e),v.provider.stopPolling(e),v.off(impl.changed,e)})},a.prototype.messages=function(){var t=this;return this.promise.then(function(e){return t.impl.getMessages(e)})},e.exports=v},{}],3:[function(t,e){var n=function(){this.handlers=[];var t=this;navigator.qt.onmessage=function(e){t.handlers.forEach(function(n){n.call(t,JSON.parse(e.data))})}};n.prototype.send=function(t){navigator.qt.postMessage(JSON.stringify(t))},Object.defineProperty(n.prototype,"onmessage",{set:function(t){this.handlers.push(t)}}),e.exports=n},{}],4:[function(t,e){var n=function(t){this.handlers=[],this.queued=[],this.ready=!1,this.ws=new WebSocket(t);var e=this;this.ws.onmessage=function(t){for(var n=0;n<e.handlers.length;n++)e.handlers[n].call(e,JSON.parse(t.data),t)},this.ws.onopen=function(){e.ready=!0;for(var t=0;t<e.queued.length;t++)e.send(e.queued[t])}};n.prototype.send=function(t){if(this.ready){var e=JSON.stringify(t);this.ws.send(e)}else this.queued.push(t)},n.prototype.onMessage=function(t){this.handlers.push(t)},n.prototype.unload=function(){this.ws.close()},Object.defineProperty(n.prototype,"onmessage",{set:function(t){this.onMessage(t)}}),e.exports=n},{}],web3:[function(t,e){var n=t("./lib/main");n.providers.WebSocketProvider=t("./lib/websocket"),n.providers.HttpRpcProvider=t("./lib/httprpc"),n.providers.QtProvider=t("./lib/qt"),e.exports=n},{"./lib/httprpc":1,"./lib/main":2,"./lib/qt":3,"./lib/websocket":4}]},{},[]);
\ No newline at end of file
+require=function e(t,n,r){function i(s,a){if(!n[s]){if(!t[s]){var c="function"==typeof require&&require;if(!a&&c)return c(s,!0);if(o)return o(s,!0);var l=new Error("Cannot find module '"+s+"'");throw l.code="MODULE_NOT_FOUND",l}var u=n[s]={exports:{}};t[s][0].call(u.exports,function(e){var n=t[s][1][e];return i(n?n:e)},u,u.exports,e,t,n,r)}return n[s].exports}for(var o="function"==typeof require&&require,s=0;s<r.length;s++)i(r[s]);return i}({1:[function(e,t){function n(e){return{jsonrpc:"2.0",method:e.call,params:e.args,id:e._id}}function r(e){var t=JSON.parse(e);return{_id:t.id,data:t.result,error:t.error}}var i=function(e){this.handlers=[],this.host=e};i.prototype.sendRequest=function(e,t){var r=n(e),i=new XMLHttpRequest;i.open("POST",this.host,!0),i.send(JSON.stringify(r)),i.onreadystatechange=function(){4===i.readyState&&t&&t(i)}},i.prototype.send=function(e){var t=this;this.sendRequest(e,function(e){t.handlers.forEach(function(n){n.call(t,r(e.responseText))})})},i.prototype.poll=function(e,t){var n=this;this.sendRequest(e,function(r){var i=JSON.parse(r.responseText);!i.error&&(i.result instanceof Array?0!==i.result.length:i.result)&&n.handlers.forEach(function(r){r.call(n,{_event:e.call,_id:t,data:i.result})})})},Object.defineProperty(i.prototype,"onmessage",{set:function(e){this.handlers.push(e)}}),t.exports=i},{}],2:[function(e,t){function n(e){return e instanceof Promise?Promise.resolve(e):e instanceof Array?new Promise(function(t){var r=e.map(function(e){return n(e)});return Promise.all(r).then(function(n){for(var r=0;r<e.length;r++)e[r]=n[r];t(e)})}):e instanceof Object?new Promise(function(t){var r=Object.keys(e),i=r.map(function(t){return n(e[t])});return Promise.all(i).then(function(n){for(var i=0;i<r.length;i++)e[r[i]]=n[i];t(e)})}):Promise.resolve(e)}function r(e){if(void 0!==e._event)return void g.trigger(e._event,e._id,e.data);if(e._id){var t=g._callbacks[e._id];t&&(t.call(this,e.error,e.data),delete g._callbacks[e._id])}}var i,o,s,a,c=function(){var e=function(e){return"string"==typeof e[0]?"blockByHash":"blockByNumber"},t=function(e){return"string"==typeof e[0]?"transactionByHash":"transactionByNumber"},n=function(e){return"string"==typeof e[0]?"uncleByHash":"uncleByNumber"},r=[{name:"balanceAt",call:"balanceAt"},{name:"stateAt",call:"stateAt"},{name:"countAt",call:"countAt"},{name:"codeAt",call:"codeAt"},{name:"transact",call:"transact"},{name:"call",call:"call"},{name:"block",call:e},{name:"transaction",call:t},{name:"uncle",call:n},{name:"compile",call:"compile"}];return r},l=function(){return[{name:"coinbase",getter:"coinbase",setter:"setCoinbase"},{name:"listening",getter:"listening",setter:"setListening"},{name:"mining",getter:"mining",setter:"setMining"},{name:"gasPrice",getter:"gasPrice"},{name:"account",getter:"account"},{name:"accounts",getter:"accounts"},{name:"peerCount",getter:"peerCount"},{name:"defaultBlock",getter:"defaultBlock",setter:"setDefaultBlock"},{name:"number",getter:"number"}]},u=function(){return[{name:"put",call:"put"},{name:"get",call:"get"},{name:"putString",call:"putString"},{name:"getString",call:"getString"}]},d=function(){return[{name:"post",call:"post"},{name:"newIdentity",call:"newIdentity"},{name:"haveIdentity",call:"haveIdentity"},{name:"newGroup",call:"newGroup"},{name:"addToGroup",call:"addToGroup"}]},p=function(){var e=function(e){return"string"==typeof e[0]?"newFilterString":"newFilter"};return[{name:"newFilter",call:e},{name:"uninstallFilter",call:"uninstallFilter"},{name:"getMessages",call:"getMessages"}]},h=function(){return[{name:"newFilter",call:"shhNewFilter"},{name:"uninstallFilter",call:"shhUninstallFilter"},{name:"getMessage",call:"shhGetMessages"}]},f=function(e,t){t.forEach(function(t){e[t.name]=function(){return n(Array.prototype.slice.call(arguments)).then(function(e){var n="function"==typeof t.call?t.call(e):t.call;return{call:n,args:e}}).then(function(e){return new Promise(function(t,n){g.provider.send(e,function(e,r){return e?void n(e):void t(r)})})}).catch(function(e){console.error(e)})}})},v=function(e,t){t.forEach(function(t){var r={};r.get=function(){return new Promise(function(e,n){g.provider.send({call:t.getter},function(t,r){return t?void n(t):void e(r)})})},t.setter&&(r.set=function(e){return n([e]).then(function(e){return new Promise(function(n){g.provider.send({call:t.setter,args:e},function(e,t){return e?void reject(e):void n(t)})})}).catch(function(e){console.error(e)})}),Object.defineProperty(e,t.name,r)})},g={_callbacks:{},_events:{},providers:{},toHex:function(e){var t,n,r="";for(t=0;t<e.length;t++)n=e.charCodeAt(t).toString(16),r+=n.length<2?"0"+n:n;return r},toAscii:function(e){var t,n="",r=0,i=e.length;for("0x"===e.substring(0,2)&&(r=2);i>r&&(t=e.charCodeAt(r),0!==t);r+=2)n+=String.fromCharCode(parseInt(e.substr(r,2),16));return n},toDecimal:function(e){return parseInt(e,16)},fromAscii:function(e,t){t=void 0===t?32:t;for(var n=this.toHex(e);n.length<2*t;)n+="00";return"0x"+n},eth:{prototype:Object(),watch:function(e){return new a(e,i)}},db:{prototype:Object()},shh:{prototype:Object(),watch:function(e){return new a(e,o)}},on:function(e,t,n){return void 0===g._events[e]&&(g._events[e]={}),g._events[e][t]=n,this},off:function(e,t){return void 0!==g._events[e]&&delete g._events[e][t],this},trigger:function(e,t,n){var r,i=g._events[e];i&&i[t]&&(r=i[t])(n)}},m=g.eth;f(m,c()),v(m,l()),f(g.db,u()),f(g.shh,d()),i={changed:"changed"},f(i,p()),o={changed:"shhChanged"},f(o,h()),s=function(){var e,t;this.queued=[],this.polls=[],this.ready=!1,this.provider=void 0,this.id=1,e=this,(t=function(){e.provider&&e.provider.poll&&e.polls.forEach(function(t){t.data._id=e.id,e.id++,e.provider.poll(t.data,t.id)}),setTimeout(t,12e3)})()},s.prototype.send=function(e,t){e._id=this.id,t&&(g._callbacks[e._id]=t),e.args=e.args||[],this.id++,void 0!==this.provider?this.provider.send(e):(console.warn("provider is not set"),this.queued.push(e))},s.prototype.set=function(e){void 0!==this.provider&&void 0!==this.provider.unload&&this.provider.unload(),this.provider=e,this.ready=!0},s.prototype.sendQueued=function(){for(var e=0;this.queued.length;e++)this.send(this.queued[e])},s.prototype.installed=function(){return void 0!==this.provider},s.prototype.startPolling=function(e,t){this.provider&&this.provider.poll&&this.polls.push({data:e,id:t})},s.prototype.stopPolling=function(e){var t,n;for(t=this.polls.length;t--;)n=this.polls[t],n.id===e&&this.polls.splice(t,1)},g.provider=new s,g.setProvider=function(e){e.onmessage=r,g.provider.set(e),g.provider.sendQueued()},a=function(e,t){this.impl=t,this.callbacks=[];var n=this;this.promise=t.newFilter(e),this.promise.then(function(e){n.id=e,g.on(t.changed,e,n.trigger.bind(n)),g.provider.startPolling({call:t.changed,args:[e]},e)})},a.prototype.arrived=function(e){this.changed(e)},a.prototype.changed=function(e){var t=this;this.promise.then(function(){t.callbacks.push(e)})},a.prototype.trigger=function(e){for(var t=0;t<this.callbacks.length;t++)this.callbacks[t].call(this,e)},a.prototype.uninstall=function(){var e=this;this.promise.then(function(t){e.impl.uninstallFilter(t),g.provider.stopPolling(t),g.off(impl.changed,t)})},a.prototype.messages=function(){var e=this;return this.promise.then(function(t){return e.impl.getMessages(t)})},t.exports=g},{}],3:[function(e,t){var n=function(){this.handlers=[];var e=this;navigator.qt.onmessage=function(t){e.handlers.forEach(function(n){n.call(e,JSON.parse(t.data))})}};n.prototype.send=function(e){navigator.qt.postMessage(JSON.stringify(e))},Object.defineProperty(n.prototype,"onmessage",{set:function(e){this.handlers.push(e)}}),t.exports=n},{}],4:[function(e,t){var n=function(e){this.handlers=[],this.queued=[],this.ready=!1,this.ws=new WebSocket(e);var t=this;this.ws.onmessage=function(e){for(var n=0;n<t.handlers.length;n++)t.handlers[n].call(t,JSON.parse(e.data),e)},this.ws.onopen=function(){t.ready=!0;for(var e=0;e<t.queued.length;e++)t.send(t.queued[e])}};n.prototype.send=function(e){if(this.ready){var t=JSON.stringify(e);this.ws.send(t)}else this.queued.push(e)},n.prototype.onMessage=function(e){this.handlers.push(e)},n.prototype.unload=function(){this.ws.close()},Object.defineProperty(n.prototype,"onmessage",{set:function(e){this.onMessage(e)}}),t.exports=n},{}],web3:[function(e,t){var n=e("./lib/main");n.providers.WebSocketProvider=e("./lib/websocket"),n.providers.HttpRpcProvider=e("./lib/httprpc"),n.providers.QtProvider=e("./lib/qt"),t.exports=n},{"./lib/httprpc":1,"./lib/main":2,"./lib/qt":3,"./lib/websocket":4}]},{},[]);
\ No newline at end of file
diff --git a/gulpfile.js b/gulpfile.js
index 120e4532d..987c127ba 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -36,7 +36,7 @@ gulp.task('clean', ['lint'], function(cb) {
   del([ DEST ], cb);
 });
 
-gulp.task('build', ['clean'], function () {
+gulp.task('prepare', ['clean'], function () {
   return browserify({
       debug: true,
       insert_global_vars: false,
@@ -59,8 +59,8 @@ gulp.task('build', ['clean'], function () {
         hoist_vars: true,
         negate_iife: false
       },
-      beautify: false,
-      warnings: true,
+      beautify: true,
+      warnings: true
     })
     .bundle()
     .pipe(exorcist(path.join( DEST, 'ethereum.js.map')))
@@ -68,7 +68,7 @@ gulp.task('build', ['clean'], function () {
     .pipe(gulp.dest( DEST ));
 });
 
-gulp.task('uglify', ['build'], function(){
+gulp.task('build', ['prepare'], function(){
   return gulp.src( DEST + 'ethereum.js')
     .pipe(uglify())
     .pipe(rename('ethereum.min.js'))
@@ -76,7 +76,7 @@ gulp.task('uglify', ['build'], function(){
 });
 
 gulp.task('watch', function() {
-  gulp.watch(['./lib/*.js'], ['lint', 'build', 'uglify']);
+  gulp.watch(['./lib/*.js'], ['lint', 'prepare', 'build']);
 });
 
-gulp.task('default', ['bower', 'lint', 'build', 'uglify']);
+gulp.task('default', ['bower', 'lint', 'prepare', 'build']);
diff --git a/lib/main.js b/lib/main.js
index 5655a762e..1c87c1667 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -223,7 +223,7 @@
             // Find termination
             var str = "";
             var i = 0, l = hex.length;
-            if (hex.substring(0, 2) == '0x')
+            if (hex.substring(0, 2) === '0x')
                 i = 2;
             for(; i < l; i+=2) {
                 var code = hex.charCodeAt(i);
@@ -447,7 +447,7 @@
         if(data._id) {
             var cb = web3._callbacks[data._id];
             if (cb) {
-                cb.call(this, data.error, data.data)
+                cb.call(this, data.error, data.data);
                 delete web3._callbacks[data._id];
             }
         }