修改两处bug

application/common/controller/Front.php

@@ -9,7 +9,7 @@
 
 namespace app\common\controller;
 
-class Fornt extends Base {
+class Front extends Base {
 
 	public $wechat_oauth;
 	public function _initialize() {

template/default/user/public/left_nav.html

@@ -1,3 +1,4 @@
+{if !empty($__MENU__)}
 {volist name="__MENU__" id="submenu"}
 <ul class="left-nav">
 	<h3><i class="fa fa-cube"></i> {$key}</h3>
@@ -5,4 +6,5 @@
 	<li class="{$item['active']}"><a href="{$item['url']|get_nav_url}"><i class="fa fa-{$item['icon']|default='list'}"></i> {$item['title']}</a> <span class="pull-right"><i class="fa fa-chevron-right text-primary"></i></span></li>
 	{/volist}
 </ul>
-{/volist}
+{/volist}
+{/if}