A batch of preparations for release candidate 2:

 - expanded documentation
   (written by Jeroen)
 - fixed bug in includes/module.inc
 - fixed bug in modules/backend.class
 - renamed some of the SQL tables (!)
 - started making the diary.module truly modular (not finished yet)
 - renamed "admin_blocks" to "boxes"
 - added new functionality to "boxes": apart from PHP boxes, you
   can now create ASCII boxes as well as HTML boxes for those who
   are not confident with PHP.
   (requested by stalor)
 - added drupal-site module to keep track of known drupal sites
 - added small Perl script to generate encrypted CVS passwords