Drupal 6 version

I spent some time porting the module to Drupal6. Attached file is a full version.

This was my first full contribution, and I didnt use CVS, just copied the code and made the changes. The versioning also needs some adjustment probably.

I optimized some very minor things on the way, like capitalization of the Admin menus, and the xhtml compliance changes from my other patch for 5.x.

This version works and passes the test from the Code Module, but probably doesn't implement all 40+ changes that Drupal6 offers new Modules.

If someone could check this into cvs, so more people can test, i'd be gratefull.