Commented out some more parts of the Advanced form that won't be making it into the 6.x-2.x branch release.

More fixes to boneheaded problems in panels_page_access(). user/% overrides should now work and not invalidate the whole site; access should now work for non-uid=1 when no role-based access checkboxes have been checked.

Removed hack intended to manage %user_uid_optional case; turns out that the to_arg function on the menu item handled it all for us, and it's unnecessary by the time we get to Panels.

Complete and utter kluge in pursuit of per-display subtabs in layout/layout settings/content editors. Finally gave up and conceded to using access callbacks to control tab visibility.

This commit will be responsibel for the death of at least two dozen kittens. Oh, the things we do in search of D6 local tasks that behave like they did in D5.

Fully disabled the menu manipulation stuff in the 'Advanced' tab, since none of it's working anyway. Just commented out, so it can be easily restored later if need be.

#349724: Reverted earlier commit on {panels_page}.access delimiter format, and sticking with the earlier one. The underlying issue is still fixed.

Unified context editing callback some more with the menu-based loader system, thereby skinning down the code a bit. Also cleaned up the loader itself to avoid generating superfluous object cache items.

#330715: Fixes for more unexpected menu behaviors. Added some more calls to menu_rebuild(), and ensured that items with wildcard paths that have not yet had arguments created for those wildcards are excluded from router item generation in hook_menu_alter().

#349724 by sarvab: Fix that ensures '{panels_page}.access' is properly formed, such that it can be used properly in panels_page_access().

Contains both some code updates and a db update to ensure consistency.

Hacky fix, will be replaced with a better one later.

#307628: Fixed creation of $panel_args in the panel_page menu handling system to contain raw id values, as expected by views and node content for string substitution.

Updated general panels_page settings form validation to prevent errors resulting from names consisting only of numbers. (Fwd port from d5)

#314495: Tab to change layout of panel node missing; also fix menu items so they only show up for panel nodes.