Changed some things around, fixed bugs.

the javaScript plugin is now userScripts to also add the CSS inclusion.
Plugins that want to add things may now want to instead configure the
frontend->css or javaScript option like `$js =
$ajaxChat->getConfig("frontend","javaScript");
$js['top'][]="jQuery.js";`
Now when we render the scripts, jQuery is at the very top of the load.
If you want to add Twitter's bootstrap, you can also add the needed CSS
by just adding them into the top or bottom array.