tabs 6.x-1.1

Significant reworking of tabs module including numerous bugfixes, code improvements, and several new features.

Note that this version will use jquery_ui module if present. It's recommended to install jquery_ui to help minimize duplicate loading of js files.

Bugfixes include:

#333165: Tabs rendering incorrectly

Code improvements include:

#553136: Conditionally load tabs files

New features include:

#362973: Error handling with multiple forms in multiple tabs
#537798: Hide tab if empty
#249932: Dynamic/Remote (Ajax) Tabs
#340374: set active tab on page load
#485842: Make tab switching speed quicker
#226667: Named Tabs
#275760: Introduce dependency on jQuery UI module

Unfortunately a last-minute change broke ajax tabs. A fix will be included in the next release.