add a web parameter project= to filter by project on waterfall and atom/rss feeds
update MAINTAINERS.txt
Merge branch 'master' of git://github.com/parcouss/buildbot
Merge branch 'master' into nine

Conflicts:
	master/buildbot/status/web/feeds.py
	master/buildbot/status/web/templates/waterfallhelp.html
	master/buildbot/status/web/waterfall.py