#156638 - fix #submit handler that was broken when upgrading to 6.x, the #submit handler changes were accidentally backported

don't use hook_init - this was inefficient (init'd on every page) and prevents code from running with aggressive caching installed, refactoring this code actually made it simpler too!

create branch 'DRUPAL-5'.

Cherrypick from master 2007-06-10 11:08:00 UTC Doug Green <douggreen@douggreenconsulting.com> 'add 'comment' #source and implement first rules for comments':
    includes/coder_comment.inc
    tests/coder_comment.inc

6.x coder upgrade review FAPI 3 checks from the CivicActions Engineering Offsite Co-working contrib session

#148412 by arthurf: 6.x coder upgrade review FAPI 3 checks from the CivicActions Engineering Offsite Co-working contrib session

write the bulk of the 6.x upgrade rules at the CivicActions engineering co-working session, with help from the whole team.  An additional patch in the issue queue will handle FAPI changes.