* general/main_menu.php: The menu has been rewritten to be more
usable, bright and colorful. It's similar to Wordpress administration
menu. It requires a bit of javascript, but can still works without it.
Besides, Pandora can remember the menus positions using cookies.
* include/javascript/jquery.pandora.js: Added javascript code for
menu handling. Added cookie plugin.
* include/styles/menu.css: Rewritten to be adapted to new menu system.
* include/styles/images/toggle.gif: Added to repository.
* include/styles/pandora.css: Set align-top to agent list table under
Manage agents.
git-svn-id: https://svn.code.sf.net/p/pandora/code/trunk@1423 c3f86ba8-e40f-0410-aaad-9ba5e7f4b01f
e7db8d22d2