updated ethereum.js

cmd/mist/assets/ext/ethereum.js/example/node-app.js

@@ -0,0 +1,16 @@
+#!/usr/bin/env node
+
+require('es6-promise').polyfill();
+
+var web3 = require("../index.js");
+
+web3.setProvider(new web3.providers.HttpRpcProvider('http://localhost:8080'));
+
+web3.eth.coinbase.then(function(result){
+  console.log(result);
+  return web3.eth.balanceAt(result);
+}).then(function(balance){
+  console.log(web3.toDecimal(balance));
+}).catch(function(err){
+  console.log(err);
+});