Added header to user lookup page

frontend/locales/english.lng

@@ -29,6 +29,7 @@ title-reinstall;							Reinstall your VPS
 title-password;								Set new root password
 title-console;								Out-of-band console
 title-admin-userlist;							User overview
+title-admin-userinfo;							User lookup
 
 button-login;								Login
 button-reinstall;							Reinstall

frontend/templates/admin.user.tpl

@@ -1,3 +1,5 @@
+<h2><%!title-admin-userinfo></h2>
+
 <table class="userinfo vertical">
 	<tr>
 		<th><%!admin-title-id></th>