Add Web3 library and service

package.json

@@ -17,6 +17,7 @@
   "devDependencies": {
     "broccoli-asset-rev": "^2.4.5",
     "ember-ajax": "^2.4.1",
+    "ember-browserify": "^1.1.13",
     "ember-cli": "2.10.0",
     "ember-cli-app-version": "^2.0.0",
     "ember-cli-babel": "^5.1.7",
@@ -34,7 +35,8 @@
     "ember-export-application-global": "^1.0.5",
     "ember-load-initializers": "^0.5.1",
     "ember-resolver": "^2.0.3",
-    "loader.js": "^4.0.10"
+    "loader.js": "^4.0.10",
+    "web3": "^0.18.2"
   },
   "engines": {
     "node": ">= 0.12.0"