TODO: this patch lets us clean up more code in code!  Let's have a look
        at this ...

- Added the ability to track page generation times in the statistics module.
  (Made some improvements as per the suggestions in the issue.)

- Added extended timer implementation.

- Patch #22531 by Morbus: the CHANGELOG for Drupal 4.5 claims that a URL alias of "rss.xml" for "node/feed" was added. This ONLY occurs in updates.inc however - if people grab a fresh 4.5 (or now, 4.6), they are never going to get this added alias. The attached patch adds this INSERT into the default database.* files, adds another update into the updates.inc (so that those who started with a fresh 4.5 or 4.6 will get it via update.php the next time around) and fixes some minor whitespace/style inconsistencies.

  keep track of the user's last access. In turn, this allowed me to:

  1. Optimize the "Who's online" block.  On drupal.org, the "Who's online"
     block requires 32 SQL queries.  With this patch, only 2 queries are
     left (eliminated 30 SQL queries), and one of the two remaining queries
     became appr. 20 times faster.

  2. Correct the "Last access" column in the user administration overview
     table.  The presented data was not accurate, which led to the column
     being removed.  You can now sort users by 'last access'.

- #19621: More sensible status messages for forum admin ("created forum" instead of "created term").

- #22154: Change : in aggregator block IDs to -, the colon is an illegal character and causes problems in CSS.

- #22154: Change : in aggregator block IDs to -, the colon is an illegal character and causes problems in CSS.

  TODO: we should write down a couple guidelines for these document them in
        the PHPDoc code of drupal_set_message()!  .

- Modified patch #21441 from puregin + RobinMonks: fixed some bugs surrounding the book administration and beautified some code making it more consistent with the rest of Drupal. :-)

- Patch #21855 by TDobes: the recent commit of phptemplate caused a number of problems for non-phptemplate themes. A patch is attached to address these issues.

  Changes include:
    * parsing of the primary/secondary links has been moved out of phptemplate and into theme_get_setting.
    * unnecessary and XHTML-invalidating duplicate div#help removed from themes/bluemarine/page.tpl.php (this is already generated by theme_help)
    * weird generation of the "edit primary/secondary links" messages removed from bluemarine and placed in theme.inc
    * unnecessary changes to themes/bluemarine/style.css rolled back (the phptemplate bluemarine had an older version of style.css than the one in core)
    * chameleon updated to work with new link scheme (passes links through theme_links)

- Rollback to previous version.

- Converted the Bluemarine theme from XTemplate to PHPTemplate.
- Moved the the Pushbutton theme and the Xtemplate engine to the contributions repository.