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- Patch by JonBob: for consistency and readability, add brief descriptions of each source file inside the @file comment block at the head of the file. This helps with Doxygen indexing, and also allows neophytes to see what a file does immediately on opening the source, regardless of the organization of the hooks.

- Code improvements by Stefan: use capital letters for header titles (and added some missing t() functions).

   * Adds missing quotes around the username in "session closed" watchdog messages from user.module (session opened has quotes, but session closed does not).
   * Changed "view detals" after watchdog entries to "details".

- Patch #8952 by Morbus: watchdog module beautifications.

  * slightly reorders the functions in anticipation of http://drupal.org/node/view/9010.
  * reorders help definitions to match the alphabetical nature of the menu items.
  * tweaked visual appearance of menu code (whitespace, etc.)
  * minor tweaks to "warning" help to match style of others.

- Patch #8952 by Morbus: made the watchdog module more doxygenish:

   * @file header with a oneliner and blurb description about watchdog.module.
   * standardized the text between admin/help#watchdog and admin/logs.
   * tweaked the descriptions of log types available ever so slightly.
   * removed anything that referred to the old settings page.
   * added an assumed 'type' to one of the menu's.

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').

- Added support for 403 handling.  Patch by JonBob.  As a side benefit,
  administrators will be able to define a custom 403 page, just as they
  can define 404 pages now.

  This needs to be documented in the "Changes since / migrating to ..."
  pages.

- Patch 6675 by Ax: reorganized the menu's of the watchdog and statistics module
  to be more intuitive and moved some help text to Doxygen comments.

  configurable!  Menu items can be disabled, repositioned, added and
  so on.

  Upgrading to requires you to run update.php.

  This functionality depricates some of the 'navigation modules' in the
  contributions repository.  Furthermore, modules can now 'suggest'
  menu items and site adminstrators can choose to enable them.  Modules
  in the contributions repository should try to take advantage of this.

Truncate UTF-8 patch. Introduced a new function truncate_utf8() for chopping off strings at unsure locations, without risking incomplete UTF-8 data.

- Patch by Steven: removed redundant permission checks.  These are no longer
  required thanks to the new 404 handling.

- Patch 5592 by Goba: introduced a new function, drupal_map_assoc().

- Avoid SQL queries if possible.

- Usability improvement: changed 'messages' to 'logs'.

Patch 5287 by Stefan: multiline help texts should become inside a single $output.

- Removed the hard-coded list of watchdog types.  The list is compiled
  dynamically and can be extended through the watchdog() call.  (Chris
  could use it to move the cron message to their own category.)

- Updated the calls to menu() to use MENU_HIDE instead of 1

  + removes the lots of pagers and indirect pager themeing
  + add the theme_pager() function, which should be called as
    theme("pager", ...) to get a pager.

- Corrected the context-sensitive help of the error messages.

- Patch 0178 by eafarris: moved the watchdog colors to CSS so they are themeable.

- Committed phase 4 of JonBob's menu system changes.

- Patch by JonBob:

  Phase 2 of the menu system integration project. This unifies the interface
  used by admin and non-admin pages, and deprecates the _page hook in favor of
  explicit callbacks from menu(). Breadcrumbs, titles, and help text go away
  as a result of this patch; they will return in the phase 3 patch, printed
  by the theme.

- table(...) -> theme("table", ...)

- Small documentation improvements.

- Committed part 3 of Michael's help system improvements: removed the $help
  parameter from the menu() function.

- Fixed typo in the watchdog module's help text.  Patch by Gabor.

- Help system improvements: eliminated the _system hook.  Patch by Michael.

- Bloggerapi module fixes.  Patch by Kjartan.

- Coding style fixes.  Patch by Michael.

- Fixed translation glitch in watchdog module.  Thanks Stefan.

- Fixed bug #3383: broken admin help of the watchdog module.  Patch by
  Jonathan.

- Made sure all menu items can be translated.  Path by Goba.

- Committed Al's new admin link texts.  Remarks:

  1) As explained by Al, there is still a glitch with the 'create content'
     menu.
  2) The user module part of the patch did not apply due to Kjartan's earlier
     patch.

- Committed the admin menu integration patch.  Thanks Adrian, Stefan and others.