Made ready_queue into a member variable of CVSRevisionAggregator.
This is like part of a patch by Oswald Buddenhagen, except that
self.ready_queue is not cleared explicitly at every call of
_extract_ready_commits() (because it is always already clear when that
routine is entered.
* cvs2svn (CVSRevisionAggregator): New member ready_queue.
(_extract_ready_commits, _commit_ready_commits,
_attempt_to_commit_symbols): Use ready_queue member.
(process_revision, flush): Adapt function calls.
git-svn-id: http://cvs2svn.tigris.org/svn/cvs2svn/trunk@1780 be7e6eca-30d4-0310-a8e5-ac0d63af7087