First attempt at admin settings page with writeable database backend.

Currently broken due to PHP's transparent conversion of "." to "_" in
POST variable names!

webui/source/templates/ajax.tpl

@@ -2,7 +2,7 @@
 	{if $messages}
 		messages: [
 		{foreach from=$messages item=message}
-			'{$message}',
+			'{$message|json_encode}',
 		{/foreach}
 		],
 	{/if}