add error status message if login failed. #177 since #156

ui/nG6/felogin.html

@@ -53,8 +53,8 @@
 		<!-- ###LOGIN_FORM### -->
 		<form action="###ACTION_URI###" target="_top" method="post" onsubmit="###ON_SUBMIT###" class="form-horizontal">
 			<fieldset>
-			
 			    <legend>###LEGEND###</legend>
+                            <p>###STATUS_MESSAGE###</p>
 			    <div class="form-group">
 				    <label class="col-sm-offset-1 col-sm-4 control-label" for="user">###USERNAME_LABEL###</label>
 				    <div class="col-sm-6">