quicktabs 6.x-2.x-dev

changes since QT 1.x:
1. AJAX-enabled Quicktabs. There are now two types of QT block you can create: the normal one, as per QT 1.x, where all content gets loaded and there's just show/hide functionality when you click on the tabs; and the AJAX version, where only the content of the active tab gets loaded initially, content for other tabs being loaded via ajax on tab click.
2. Block, node, view and quicktab can be used as a tabpage.
3. Different styles can be selected for different quicktabs.
4. When JS is turned off, the tabs look the same, and are accessible using full page reloads. The status of other tab boxes on the page is kept across page loads.
5. Direct url to a tab.
6. The view arguments could be grabbed from the url.
7. Node and view type tabpages have access checking.
8. There are many other bugs fixed and some code improvements in this version.

This is a development snapshot. Do not use on a production site!