- Tracker and forum module improvements!

  Note: the CSS of the tracker page has changed.  Some CSS files still have
  to be updated.

- Patch #6470 by Brian: fixed XHTML error with multiple selection boxes.

- Patch 6421 by TDobes: In the recent user.module and profile.module update, a
  typo was introduced into xtemplate.theme which prevents the use (specifically,
  the ability to enable) comment pictures (formerly known as avatars).

- Fix #6393 by TDobes: fixed users table after.  It was not updated properly after the recent profile module changes.

- Rewrote the profile module:

   + Added a 'created' field to the users table and renamed the 'timestamp'
     fied to 'changed' (cfr. node table).  Update.php will try to determine
     a 'created' timestamp for existing users.

   + The profile module no longer uses serialized data but has its own set
     of tables.  Known existing profile data is migrated by these new tables.
       TODO: migrate the birthday field.

   + The profile fields can be grouped, and within each group, profile fields
     can be sorted using weights.

   + The profile pages can be themed.

   + The profiles can be browsed based on certain properties/settings.

   + Change the _user hook: (i) 'private_view' and 'public_view' are merged
     into 'view' as there are no private fields and (ii) 'edit_form' has
     been renamed to 'edit'.

   + Avatar handling has been refactored and is now part of the user module.
     The users table has a dedicted 'picture' field.

   + Simplified the way themes should use display/visualize pictures or
     avatars.

   + Made it possible for administrators to replace or delete avatars.

   + ...

  I hope this make for a good base to build on collectively.

- Patch #4902 by Goba: fix URLs in RSS feeds.
   + Make all channel links absolute.
   + Always set the $base_url as xml:base, thus providing a solid base for
     relative URLs.

- Patch #6260 by TDobes: fixed incorrect alt-attribute for avatar images in
  the Xtemplate theme.

- Patch 6140 by Goba: fix the 'read more'-link behavior.

- Modified patch by TheLibrarian: add a summary attribute to the calendar.

- Set the version number.

- Removed broken throttle.

  the header logo image, so that multiple lines of text can be added to Primary
  menu without breaking the design.

- Patch #6129 by Goba: fixed dependencies on search module.

- Patch #6110 by Goba: stop cheating in the Drupal site list.

- Made filename modification more logical when there was no extension.

- Patch 6066 by Adrian: PostgreSQL does not return 'affected rows' when doing
  a select statement.  Even though PEAR supports this functionality, it fails
  silently when using PostgreSQL.  We use the db_num_rows() function instead
  to return the amount of rows returned.  (According to Killes, the MySQL
  manual also states that it should not return affected rows on a 'select'
  statement.)

- Fixed bug #6048: display footer in theme chameleon.

- Patch by Gerhard: move the updates to database/updates.inc so packaging
  systems can by-pass update.php.

Fixed an apparently old bug which always defaulted user-togglable blocks to off, and clarified the explanation a bit.

* Code cleaning: simpler structures, removed some old leftovers, ...
* Clean URLs everywhere (the old mechanism was broken anyway). Had to get rid of 'inline voting' (i.e. voting with the sideblock and ending up on the same page), but that was a bit confusing anyway.
* Simplified submission form with form_group and streamlined choice mechanism.
* Improved bar rendering in pollresults for themes with avatars, like xtemplate.

Improved <label> patch: got rid of ID's by implicit association, and made radio/check labels non-bold again.

- Patch 6012 by Adrian: syncs the PostgreSQL port with the current state of HEAD,
  and adds a user notice to add the throttle and bootstrap columns to the
  system table manually, else update.php will not run.  The message includes the
  SQL statements required for both MySQL and PostgreSQL.

- Patch 6011 by MegaGrunt: the transparent GIF used for the rollover effect
  in the header icon is missing. The path for this image is in the XHTML
  file, when the images were moved out of the "image" directory, the XHTML
  file was not updated.

- Patch #6000 by Goba: makes the short tip list a HTML list (as it is semantically
  expected) and gives proper class names to the long and short tip list, so if
  someone would like to reproduce the 'br' tagged version, he can do that with
  some CSS styles easily.  Assigned a dedicated class to the more-tips link, so it
  can be differently stlyed (with a different bullet, different link color or
  anyhow, as the theme designer desires).