- Use semantic HTML table markup properly (caption, thead).

 - Make calendar block smaller.

 - Remove double-quotes from queries to be PGSQL compatible.

Also fixed archive calendar block month title not being made into a link.

 - Expanded archive block to include days from previous & next months.
 - Added CSS class of 'out-of-month' to extra days and styled them as grey.
 - CSS file is now added to every page using the archive block.

 - Add uninstall() hook to 6.x branch.

  - Missing calls to t()
  - Incorrect comparison

  - Use human-readable node type name in node type navigation box

  - Fixed invalid call to _archive_url

  - Titles for block links not displayed correctly

  - Calendar block displays incorrectly for non-English locales

  - General code cleanup
  - Documentation fixes
  - E_ALL variable initiatialization fix

  - Changes permissions from logged_in to "access content"
  - Documents permissions in README.txt

  - Fixed date issues for calendar block

Fixed theme_archive_separator() so that it displays transitions between dates correctly. Also improved documentation for that function.

Only years that have posts are now displayed.
General code cleanup.