- Bugfix.  When a theme does no longer exist on disk, it should not be
  returned by theme_list() as it breaks the site ...  The attached patch
  prevents this from happening but does not remove the theme from the system
  table in the SQL database - if the theme is removed from the database upon
  viewing the themes administration page (or another trigger), I guess that
  is fine.

Kjartan: my fix is the right thing to apply because theme_list() is used
         elsewhere where it requires to return a list of existing themes.
         Maybe it's a little sad but the current theme loading code might
         be slower and more complex than the old Drupal 3 theme loading
         code ... ?

- Included modules will now cause parse errors instead of them being supressed.
  Was making debugging really hard.

- Ran the code through 'scripts/code-clean.sh': removed trailing whitespace
  (and possibly tabs).

- Fixed typo.

- fixed block permissions.
- fixed user admin page errors: http://www.drupal.org/node.php?id=173.
- cleaned up common.inc a bit: removed format_info, path_img, field_merge.

- coding style clean ups.
- fixed taxonomy causing errors.

- Fixed broken RSS feeds.

  TODO:
    + Make l()/lm()/la() urlencode() URLs?
    + Fix problems with the #-trick in drupal_url()/l().

    or disabled as it will cause errors otherwise.

  - split status into status and custom. Status will turn the block
    on/off, and custom defined if the user can change the status.
    Requires sql update.

  - reintroduced user page to configure blocks.

- Included Moshe's guidelines on the use of t().

Patch by Moshe Weitzman:

- request_uri() behaves on non-apache web servers. i've tested on IIS and
apache (many platforms).

- modules may now implement the _search_item() hook which overrides the
default formatting of search results. modules already can customize which
fields are indexed. no module currently uses this hook but
externalpage.module expects to do so.

- added an optional $attribs argument to l(), lm(), and la() which is an
associative array of attributes which are inserted into the <a> tag (feature
#146).

- drupal_str_replace() is deleted (i had recently added it). i verified that
no scripts are currently calling this function. use strtr() or str_replace()
instead.

- arbitrary elements may be added to the <channel> and <item> blocks of an
RSS feed by passing the $args associative array. the core RSS engine is now
able to support elements like <cloud> and <catagory> [1] and RSS 1.0[2]

[1] http://backend.userland.com/rss092
[2] http://groups.yahoo.com/group/rss-dev/files/namespace.html

- Made the date strings configurable.  Patch by Simon Lindsay.

  fixed by Marco.

    * fixed mails not being parsed properly.
    * tracker now shows user name when you view your own recent
      comments.
    * link to submission queue now points to the right place.
    * fixed jabber module.
    * theme is now activated when changed.
- applied Gerhards coding style patch.

- Applied Marco's big patch, including contributions from Moshe:

    + Changed the db_query() API.

    + Wrapped all links in l(), lm(), la(), ..., drupal_url() functions.

    + XHTML-ified some HTML.

    + Wrapped a lot of text in the administrative pages in a t()
      function.

    + Replaced all $REQUEST_URI/$PATH_INFOs by request_uri().

    + Small bugfixes (eg. bug in book_export_html() and clean-ups (eg.
      RSS code).

    + Fixed some bugs in the taxonomy module (eg. tree making bug), added
      new functionality (eg. new APIs for use by other modules), included
      Moshe's taxonomy extensions, and some documentation udpates.

    + ...

- Added Marco's long-awaited taxonmy module and patches - a replacement
  for the meta system.  The patches add some extra functionality to the
  comment system (for example, comments can be set read-only) and fix a
  couple of small problems.

  + I integrated the required SQL updates from the varius *.mysql files
    into the "update.php" script.  Upgrading should be easy ...

  + I did not apply/commit the "user.diff" as requested by Marco ...

  + I didn't know what to do with "forum.module" and "forum2.module":
    what do you want me to do with it Marco?  Which one should go in?

  + Can we remove "node_index()" now; both from "node.module" and the
    themes?

  + Thanks Marco!

Committing Changes by Moshe Weitzman:
- admin_user_account(), user_edit(), and user_view() no longer have any
  hard code for authentication modules. instead authentication modules
  implement the _user hook.
- fixed a couple 'help' typos.
- linked the 'REGISTER' text in the login block to the register page.
  this page now advertises DA better if site employs DA.
- admins may now edit everything about a user account (was a feature
  request).
- user #1 may now login immediately, in addition to receiving his
  password via email.

Other changes:
- modules and themes are now enabled/disabled in the administrative /
  settings / modules | themes pages. Requires SQL update and things must
  be enabled before your site returns to normal. TODO: enable all
  functionality. (For now just do UPDATE system SET status = 1;)
- removed $themes from conf.php.
- added a $theme->system() function where theme can specify settings.
  All themes in the Drupal CVS have been updated to use this.
- added _system hook to modules. TODO: update modules to use this.
- changed strange use of sprintf to the usual strtr. The disadvantage of
  sprintf is that it requires translations to keep the string order,
  which may not be possible in all languages.
- an invalid/nonexisting theme in a user profile will now fallback to the
  BaseTheme instead of crashing.

  login and one for user information.
- added link to help in book module (post-patch, see below).
- applied various patches:
  Patch by Greg Tyrelle <greg@tyrelle.net>
  - tracker module now shows usernames next to comments.

  Patch by Moshe Weitzman <moshe@wallaware.com>
  - book module has a more complete help.
  - added administrative link to export book to html
  - fixed non book nodes not showing up in trees.

  Patch by moshe weitzman <weitzman@tejasa.com>
  - links can be defined in the configuration file.

- added who is online block.
- made weblog module more configurable.
- users may now delete their own accounts (Feature #8)
- users may now request a password using email address *or* username.
  formerly required both items to match an account which was onerous.
- the link to request a new password is now presented whenever a user
  fails login.
- there is now a confirmation message after submitting edits to your
  user information.
- error messages in user.module may now be stylized by themes.
- <hook>_form has a $param setting you can fill with form parameters.
- improved wording for a few config settings.
- fixed various non-coding standard things.

- Removed theme Trillian from the $themes-array.

  http://list.drupal.org/drupal-devel/2002-February/thread.html#6678
  http://list.drupal.org/drupal-devel/2002-February/thread.html#6629
- removed references to $this->user() from themes.
- removed $BaseTheme->user(). It was deprecated a while back.

NOTE: this update will break custom themes, so make sure you update your
themes before updating!

- Applied Natrak's module improvements.

- Fixed more than 30 HTML and XML well-formedness errors.

    * only problem is that the admin.php link is not available until the
      admin enables the block.
    * $theme->user is obsolete, will patch the themes properly in a
      later patch.
- moved moderation block from theme.inc to queue.module.
    * removed theme_moderation_results().
- updated database/database.mysql.

- Fixed a typo in the example theme.  (Patch by Mark)

- Added a "title"-attribute to the "register" link and translated the
  "Rembember me" checkbox.

 - attempted to fixed crashes with the custom session handler.

External SMTP library
 - added functionality to have Drupal not use the default PHP mail()
   function. For more info see: http://www.drupal.org/node.php?id=44
   Note: for this to work all modules that send mails should use the
   Drupal function to send mail:
     user_mail($mail, $subject, $message, $header);

Calendar
 - added an archive page which users can use to find archives instead of
   the good old block.

Miscellaneous
 - fixed a "random" offset bug on module.inc that occurred on Windows.

All of this needs more testing, and further suggestions are welcome.

- Fixed a typo

Integrated Marco's generic/improved cache into Drupal.  Requires an
SQL update.  See below for more details.

- Merged the file "cache.inc" into "common.inc".

- In addition, I renamed the field 'url' in the cache table to
  a more generic 'cid' (cache identifier).  It's no longer for
  URLs only.

- Made the "cache_set()" function ASNI compliant such that it
  will play nice with other databases such as Postgres.

- Added some extra input checking.

- Updated the old caching code in the functions "page_header()"
  and "page_footer()" to use the new, generic cache API.

- Updated "update.php" to make the required SQL changes.