Add the 'Discard Old Build' plugin and update Greenballs plugin (#473)
Rename staging OSX 10.7 machines to OSX 10.10 (#479)
Upgrade to mozmill-automation 2.0.7 (#484)
Revert "Add the 'Discard Old Build' plugin and update Greenballs plugin (#473)" due to regressions

This reverts commit a28f3e98fad27b94ef40620bb8f711d014ea42f9.
Upgrade to mozmill-automation 2.0.8 (#489)
Set a retention policy of 3 days, and bump max builds for releases to 2000 (#473)
Replace fa with ar locale for staging (#476)
Adding batch 5 of locales for beta and release (#270)
Adding batch 6 of locales for beta and release (#270)
Update docs to force us using rebase and not cherry-pick for merges (#486)
Remove usage of IRC plugin (#494)
Disable jUnit plugin for all jobs (#320)
Adding batch 7 of locales for beta and release (#270)
Adding batch 8 of locales for beta and release (#270)
Upgrade to mozmill-automation 2.0.8.1 (#501)
Remove 'Instant Messaging' plugin (#494)
Adding batch 9 of locales for beta and release (#270)
Adding batch 10 of locales for beta and release (#270)
Assert that all available jobs are listed (#441)