FEATURE: hasModule global helper to figure out if module exists

Author: SamSaffron

.jshintrc

@@ -49,6 +49,7 @@
     "notEqual",
     "require",
     "requirejs",
+    "hasModule",
     "Blob",
     "File"],
   "node" : false,

vendor/assets/javascripts/loader.js

@@ -1,4 +1,4 @@
-var define, requireModule, require, requirejs;
+var define, requireModule, require, requirejs, hasModule;
 
 (function() {
   var registry = {}, seen = {}, state = {};
@@ -32,6 +32,10 @@ var define, requireModule, require, requirejs;
     };
   }
 
+  hasModule = function(name){
+    return !!registry[name];
+  };
+
   requirejs = require = requireModule = function(name) {
     if (state[name] !== FAILED &&
         seen.hasOwnProperty(name)) {