- Applied Danny's fix to issue 20.

git-svn-id: http://irc-api.googlecode.com/svn/trunk@200 63d6fa83-7ac6-0606-4eca-07a426b6025d
- Applied Danny's fix to issue 19

git-svn-id: http://irc-api.googlecode.com/svn/trunk@201 63d6fa83-7ac6-0606-4eca-07a426b6025d
Make some instance variables final.