Use getValue instead of _.result, remove extra args from getValue

src/collection.js

@@ -20,7 +20,7 @@ Thorax.Collection = Backbone.Collection.extend({
     return this._fetched || this.length > 0 || (!this.length && !getValue(this, 'url'));
   },
   shouldFetch: function(options) {
-    return options.fetch && !!_.result(this, 'url') && !this.isPopulated();
+    return options.fetch && !!getValue(this, 'url') && !this.isPopulated();
   },
   fetch: function(options) {
     options = options || {};

src/util.js

@@ -27,12 +27,15 @@ function registryGet(object, type, name, ignoreErrors) {
   }
 }
 
+// getValue is used instead of _.result because we
+// need an extra scope parameter, and will minify
+// better than _.result
 function getValue(object, prop, scope) {
   if (!(object && object[prop])) {
     return null;
   }
   return _.isFunction(object[prop])
-    ? object[prop].apply(scope || object, Array.prototype.slice.call(arguments, 2))
+    ? object[prop].call(scope || object)
     : object[prop];
 }