bug 891114 - bustage fix
Bug 892140 - Don't use sys.exit() in BaseScript.run(); r=aki
Added FIREFOX_23_0b5_RELEASE FIREFOX_23_0b5_BUILD1 tag(s) for changeset production. DONTBUILD CLOSED TREE a=release
Bug 892078 - Use cli.py instead of runtests.py when invoking gaiatests, r=aki
Bug 859573 - Part 1: Register script listeners via decorators; r=aki