css version support

Author: serghey-rodin

web/templates/header.html

@@ -4,7 +4,7 @@
         <link rel="icon" href="/images/favicon.ico" type="image/x-icon">
         <title>Vesta - <?php echo "$TAB"; ?> </title>
         <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
-        <link type="text/css" href="/css/main.css" rel="stylesheet" />
+        <link type="text/css" href="/css/main.css?ver=1390333255" rel="stylesheet" />
         <!--[if IE 7]>
             <link rel="stylesheet" type="text/css" href="/css/ie.css" />
             <style type="text/css">