Add command 'shutdown' to IRCContact.
Add related tests.
Add related documentation.
Merge branch 'parametersdoc' of git://github.com/pepsiman/buildbot into buildbot-0.8.7
Merge branch 'patch-4' of git://github.com/benallard/buildbot into buildbot-0.8.7
Merge branch 'et_allow_shutdown_create-slave' of git://github.com/jgonzalezmendez/buildbot
Merge branch 'master' of git://github.com/yetanotherion/buildbot
Merge branch 'extend-irc' of git://github.com/flaviojs/buildbot
Revert "Get the factory class from a variable to facilitate customization of the IRC class."

This reverts commit c43e5bf49f20d37fa252d53d9d0e8f5acef56738.

This particular piece is not required for the IRC client changes.
Merge pull request #499 from benallard/patch-4

JSONStringDownload: small doc formatting.
Revert "test_process_buildstep: interrupt does not release locks"

This reverts commit a87e691d2f6fca7f2e08af5d3849dffee9fe37e5.
See gh-503.
Refactor code for clobberOnFailure. Don't clobber() for this case, use independent functions
To get revision number use svn info instead of svnversion

Fixes #167
Add CopyDirectory build step
Add describe to all slave build steps
Remove use of deprecated twisted.web.error.NoResource

This is has been moved to twisted.web.resource since at least twisted-0.9.0.
Merge branch 'buildbot-0.8.7'
Fix up how default_props works with ForceScheduler
Adjust CSS for ForceScheduler
Fix BooleanParameter default
Fix InheritBuildParameter
Merge branch 'fix-default-with-forcesched' of git://github.com/jaredgrubb/buildbot into buildbot-0.8.7
Merge branch 'copydirectory' of git://github.com/pepsiman/buildbot