- bugfix: advanced search broken
- task: unify head html output (in _search.inc)
- task: make filter tag case-insensitive

(requires G2.3/svn and is still volatile, for early testing only)

 again once the correct methods to import module css files has been documented
 (see http://drupal.org/node/60096).
 - The css file is now not included twice on gallery pages (is correctly loaded
   after Gallery2's theme.css file and so can override)
 - This *removes* the functionality to use a theme specific drupal_g2.css file.
   There have got to be better ways to override module css files.
 - css improvements to not hide h2's in G2 Admin pages
 - Removed DOS line endings from gallery_filter.inc