Major re-organization of handlers. PLEASE NOTE: This drastically affected the Views module API and until modules are updated to match, they will stop working. Efforts have been made to ensure that this won't cause your site to crash, but that's partly up to the individual module as well.

#296765: user autocomplete incorrectly required administer views access. Also incorrectly required Views UI module.

Redo some form stuff to make it easier to choose the next form when chaining; and add some new chaining options. This commit will require you to visit admin/build/modules to reset the menu or the UI will stop working.

#240634: Due to use of field aliases that are not always valid, multiple pseudo fields weren't showing up. Fixed up the field template to better conform to other templates.

Initial taxonomy implementation. There's still a ways to go -- I totally punted on depth -- and we need a few more argument handlers.

#239947: Allow an optional debug signature to views to make it easier to identify where queries come from when perusing a query log.

Most of user.views.inc plus some bug fixes, improvements to join handling. For those interested in the real complexities, check out views_handler_filter_many_to_one to see cool stuff you can do with joins in views 2 that you could not in views 1

#105125: (by moshe) Per field access control; fields will now remove themselves from views if the viewing user does not have access to see the field.

#235459: include leading . on all includes; also turn all include_once into require_once for efficiency.

#232905: view id was not getting read due to previous patch, thus display was getting saved with vid 0.

Import/export now work, plus an unfortunate major overhaul underneath. THIS CHECKIN WILL BREAK ALL EXISTING VIEWS.

Add better hiliting to the UI; now possible to tell what items are overridden as well as what item is currently being edited