Fixed typo in HTML code of client and reseller form.

Author: Till Brehm

interface/web/client/templates/client_edit_limits.htm

@@ -174,7 +174,7 @@ <h4 class="panel-title">
         </a>
       </h4>
     </div>
-    <div id="collapseMail" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingMail>
+    <div id="collapseMail" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingMail">
       <div class="panel-body">
 				<div class="form-group">
                     <label for="mail_servers" class="col-sm-3 control-label">{tmpl_var name='mail_servers_txt'}</label>

interface/web/client/templates/reseller_edit_limits.htm

@@ -177,7 +177,7 @@ <h4 class="panel-title">
         </a>
       </h4>
     </div>
-    <div id="collapseMail" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingMail>
+    <div id="collapseMail" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingMail">
       <div class="panel-body">&nbsp;
 				<div class="form-group">
                     <label for="mail_servers" class="col-sm-3 control-label">{tmpl_var name='mail_servers_txt'}</label>