Remove unused underscore dependency

lib/application.js

@@ -7,7 +7,6 @@ var registry = require('./registry');
 var assert = require('assert');
 var fs = require('fs');
 var extend = require('util')._extend;
-var _ = require('underscore');
 var RemoteObjects = require('strong-remoting');
 var stringUtils = require('underscore.string');
 var path = require('path');

package.json

@@ -49,7 +49,6 @@
     "serve-favicon": "^2.1.6",
     "strong-remoting": "^2.4.0",
     "uid2": "0.0.3",
-    "underscore": "~1.7.0",
     "underscore.string": "~2.3.3"
   },
   "peerDependencies": {