fix(i18nDirective): does not throw error on non-token(s)

Closes doshprompt#4

Author: doshprompt

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "angular-localization",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "homepage": "https://github.com/doshprompt/angular-localization",
   "description": "angularjs localization done right",
   "main": "angular-localization.js",

src/localization.js

@@ -270,15 +270,20 @@ angular.module('ngLocalize', ['ngCookies', 'ngLocalize.Config', 'ngLocalize.Even
         function (locale, localeEvents, localeConf) {
             'use strict';
 
-            function update(elm, string, optArgs) {
-                var tag = '';
+            function setText(elm, tag) {
+                if (tag !== elm.text()) {
+                    elm.text(tag);
+                }
+            }
 
-                locale.ready(locale.getPath(string)).then(function () {
-                    tag = locale.getString(string, optArgs);
-                    if (tag !== elm.text()) {
-                        elm.text(tag);
-                    }
-                });
+            function update(elm, string, optArgs) {
+                if (locale.isToken(string)) {
+                    locale.ready(locale.getPath(string)).then(function () {
+                        setText(elm, locale.getString(string, optArgs));
+                    });
+                } else {
+                    setText(elm, string);
+                }
             }
 
             return function (scope, elm, attrs) {

tests/unit/directiveSpec.js

@@ -41,6 +41,15 @@ describe('directives', function () {
             $rootScope.$digest();
             expect(element.text()).toEqual('My name is Rahul Doshi');
         }));
+
+        it('should allow non-tokens to passthrough untouched and without errors', inject(function ($compile, $rootScope) {
+            var element = angular.element(
+                '<p data-i18n="notAToken"></p>'
+            );
+            $compile(element)($rootScope);
+            $rootScope.$digest();
+            expect(element.text()).toEqual('notAToken');
+        }));
     });
 
     describe('i18nAttr', function () {