Added another map/object fix

Author: gfosco

Schema.js

@@ -138,6 +138,7 @@ Schema.prototype.validateField = function(className, key, type, freeze) {
 
   var expected = this.data[className][key];
   if (expected) {
+    expected = (expected === 'map' ? 'object' : expected);
     if (expected === type) {
       return Promise.resolve(this);
     } else {