!52 修复管理添加时不支持中文的问题，与编辑页面统一

Merge pull request !52 from F4NNIU/fix_admin_add

application/admin/view/auth/admin/add.html

@@ -20,7 +20,7 @@
     <div class="form-group">
         <label for="nickname" class="control-label col-xs-12 col-sm-2">{:__('Nickname')}:</label>
         <div class="col-xs-12 col-sm-8">
-            <input type="text" class="form-control" id="nickname" name="row[nickname]" autocomplete="off" value="" data-rule="required;username" />
+            <input type="text" class="form-control" id="nickname" name="row[nickname]" autocomplete="off" value="" data-rule="required" />
         </div>
     </div>
     <div class="form-group">