Added meta viewport tag

includes/head-content.html

@@ -1,3 +1,4 @@
+	<meta name="viewport" content="width=device-width, initial-scale=1">
 	<script>window.GW = { };</script>
 	<link rel='stylesheet' type='text/css' href='/deus/assets/css/fonts.css'>
 	<link rel='stylesheet' type='text/css' href='/deus/assets/css/main.css'>