add grunt to postintall

lib/TransactionRpc.js

@@ -5,9 +5,7 @@ require('classtool');
 
 function spec(b) {
   var RpcClient       = require('bitcore/RpcClient').class(),
-//      networks         = require('bitcore/network'),
       BitcoreTransaction = require('bitcore/Transaction').class(),
-      BitcoreBlock = require('bitcore/Block').class(),
       util         = require('bitcore/util/util'),
       config       = require('../config/config');
 

package.json

@@ -48,7 +48,7 @@
   },
   "scripts": {
     "start": "node node_modules/grunt-cli/bin/grunt",
-    "postinstall": "node node_modules/bower/bin/bower install"
+    "postinstall": "node node_modules/bower/bin/bower install; node ./node_modules/grunt-cli/bin/grunt compile "
   },
   "dependencies": {
     "async": "*",