[enhance] don't apply role if get function is not called with role

Author: drunkhacker

lib/index.js

@@ -48,7 +48,7 @@ init = function(target) {
       }
       if (key !== undefined) {
         var attr = target.rawAttributes[key];
-        if (!attr || !attr.roles || attr.roles && attr.roles[options.role] && attr.roles[options.role].get) {
+        if (!attr || !attr.roles || attr.roles && (!options.role || (attr.roles[options.role] && attr.roles[options.role].get))) {
           return $get.call(this, key, options);
         } else {
           return undefined;