- Patch #19451 by JonBob: improved consistency of module descriptions.  We should write guidelines for this -- maybe in the PHPDoc code of the _help hook.

  We added a 'severity' column to watchdog():
    watchdog($type, $message, $link) --> watchdog($type, $message, $severity, $link);

    * Specify a severity in case you are reporting a warning or error.
    * The $link-parameter is now the fourth parameter instead of the third.

  TODO: document this in the upgrade guide.

- Made the ping module ping pingomatic.com, which in turn, will ping all the major ping services.
  Less code to ping more services.

- Patch #14005 by Richard: rewrote the ping module's built-in documentation.

- Bugfix: provide an absolute URL to the 'ping servers'.

- 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: made all status messages consistent (and easier to translate).

- Patch #7458: bugfix: reverted the conditional inclusion of xmlrpc.inc.

- Patch #7458 by killes: conditionally include xmlrpc.inc.

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').

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

- Translation fix: made the word 'permission' translatable in the system module' help text.  Patch by Goba.

- Translation fix: the ping module's help text was translated twice.  Patch by Goba.

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

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

- Bloggerapi module fixes.  Patch by Kjartan.

- Coding style fixes.  Patch by Michael.

- Help improvements and translation improvements from Michael.  Thanks!

- Updated modules to new help system.  Patch by Michael.

- Help system improvements from Michael.

- Committed a slightly modified version of Slavica's table prefix patch.

- Bugfix: small Xtemplate fixes.  Patch by Ax.  (Slightly modified.)

- Bugfix: block patch fix.  Patch by Gerhard.

- Bugfix: fixed broken URL in ping.  Patch by Gerhard.

  (This should fix the problems shown on http://www.blo.gs/info.php?id=1515.)

- Improvement: added better password generator.  Patch #1 by Al.  Fixes bug
  #1935.

- Improvement: performance improvement to the blog module.  Patch by Marco.

- Michael Frankowski's excellent help text improvements!

- Removed the path_uri() function in favor of the $base_url variable and
  fixes a handful of bugs introduced by the clean URL patch.

- Clean URL patch.

- Substituted the weblogs module with a more generic ping module.  We're
  now pinging http://blo.gs/ as well as support the new Weblogs.com RSS
  format.  Thanks Breyten.