- Patch #15976 by Neil: if one single admin modifiable menu item is added then it is not put in the menu table because the comparison is > 1 instead of > 0.

- Usability improvement: only display subtabs if there is more than one subtab.  If there is only one, make sure it is the set to be the default subtab and all is well.

- On popular demand, patch #10178 by jhriggs: made it possible to expand menu items.

#11449: Adding a failsafe check for an improperly prefixed menu sequence. This is a temporary fix, awaiting a proper install system to end manual prefixing ;).

- Patch #9292 by Gerhard: fixed another array_merge + PHP5 woe.

- Patch #8179 by JonBob: reintroduced menu caching.

- Patch #10663 by JonBob: documentation improvements: fixed some typos and improved consistency to the use of Doxygen/api.module commands in the comments.

- Patch #10192 by JonBob: fixed issue with menus not expanding.

- Patch #9864 by JonBob: better form validation in menu administration.

- Patch #9983 by Stefan: various code style improvements.

- Patch by Al: improved the admin/help pages (first step).

- Patch #9330: ucfirst() gives problem when used with multibyte charset.
  Replaced the use of ucfirst() with a CSS-based solution.

- Patch #7336 by TDobes: in various parts of Drupal, we use the title attribute for links to provide a slightly more detailed explanation as to the purpose of a link or where it goes.

- Patch #9464 by Moshe: menu.module omitted a pair of braces when calling
  db_next_id().

- Patch #9290 by Morbus / JonBob / TDobes: SUBTASK removal patch for menu.inc.

- Patch #9262 by Ber / JonBob: the menu did not build correctly, thus the additional menu's were never displayed, but were saved. Only the last custom menu was displayed.

- Patch by JonBob: a significant documentation update for the menu system!

- More tab-improvements by JonBob: improved support for the default tabs!

- Patch #9049 by JonBob: fixed a number of tab issues.

- Patch #8973 by JonBob: Drupal contains many undefined variables and array indices, which makes PHP throw a lot of warnings when the reporting level is set to E_ALL. Things run fine with these warnings, but as a matter of code style if nothing else we should probably strive to avoid them. The attached fixes most of the more egregious offenders (about 95% of the warnings when I load /node on my test site).

- Patch #8941 by JonBob: allow local tasks to be ordered by weight, as well
  as simplifying the theming of local tasks so they can be more easily
  rendered in a non-tab manner.

First tab improvements by Adrian:

  + Changed menu.inc to generate two separate lists instead of nested lists:
    that seems to be the only alternative to get rid of absolute positioning.

  + Changed the tabs code to be more sexy and put the code in misc/drupal.css
    so all themes are automagically updated.

Tabs patch!

CHANGES
-------

 + Introduced tabs. First, we extended the menu system to support tabs. Next, a tab was added for every link that was (1) an administrative action other than the implicit 'view' (2) relevant to that particular page only. This is illustrated by the fact that all tabs are verbs and that clicking a page's tab leads you to a subpage of that page.

 + Flattened the administration menu. The tabs helped simplify the navigation menu as I could separate 'actions' from 'navigation'. In addition, I removed the 'administer > configuration'-menu, renamed 'blocks' to 'sidebars' which I hope is a bit more descriptive, and made a couple more changes. Earlier, we already renamed 'taxonomy' to 'categorization' and we move 'statistics' under 'logs'.

 + Grouped settings. All settings have been grouped under 'administer > settings'.

TODO
----

 + Update core themes: only Xtemplate default supports tabs and even those look ugly.  Need help.

 + Update contributed modules.  The menu() hook changed drastically.  Updating your code adhere the new menu() function should be 90% of the work.  Moreover, ensure that your modue's admin links are still valid and that URLs to node get updated to the new scheme ('node/view/x' -> 'node/x').