($meteorCollection.save()): Change stripDollarPrefixedKeys to angular.copy, fixes #372

still needs to add tests

Author: Urigo

modules/angular-meteor-meteorCollection.js

@@ -30,7 +30,7 @@ angularMeteorCollections.factory('AngularMeteorCollection', ['$q', '$meteorSubsc
         var deferred = $q.defer();
 
         // delete $$hashkey
-        item = $meteorUtils.stripDollarPrefixedKeys(item);
+        item = angular.copy(item);
 
         if (item._id) { // Performs an update if the _id property is set.
           var item_id = item._id; // Store the _id in temporary variable

modules/angular-meteor-utils.js

@@ -23,17 +23,6 @@ angularMeteorUtils.service('$meteorUtils', [ '$timeout',
       // return autorun object so that it can be stopped manually
       return comp;
     };
-    // Borrowed from angularFire - https://github.com/firebase/angularfire/blob/master/src/utils.js#L445-L454
-    this.stripDollarPrefixedKeys = function (data) {
-      if( !angular.isObject(data) || data instanceof File) { return data; }
-      var out = angular.isArray(data)? [] : {};
-      angular.forEach(data, function(v,k) {
-        if(typeof k !== 'string' || k.charAt(0) !== '$') {
-          out[k] = self.stripDollarPrefixedKeys(v);
-        }
-      });
-      return out;
-    }
   }]);
 
 angularMeteorUtils.run(['$rootScope', '$meteorUtils',