fix design & using api

src/controllers/states/SnippetsDetailController.js

@@ -7,9 +7,7 @@ angular.module('codexen')
 
     var snippetId = $state.params.id
 
-    Snippet.show(snippetId, {
-      'include': ['Tag']
-    })
+    Snippet.show(snippetId)
       .success(function (data) {
         vm.snippet = data
         vm.isLoaded = true

src/controllers/states/SnippetsListController.js

@@ -74,9 +74,7 @@ angular.module('codexen')
 
     function loadSnippets() {
       if ($auth.isAuthenticated) {
-        Snippet.findMine({
-          'include': ['Tag']
-        })
+        Snippet.findMine()
           .success(function (data) {
             vm.snippets = data
           })