Added a new build result which shows when a build is not rebuilt
Stop sending message to these functions that don't require it
Removed verbose from mercurial commands as it slows down logging

- Added traceback for debugging purposes
Added raw build times

- Raw build times remove timings from trigger and acquire steps which should produce a "real" build time output useful for diagnostics
- We'll show the raw build time on the recent builds table and on the build page
Merge branch 'not_rebuilt_styling' into staging

Conflicts:
	master/buildbot/status/web/files/prod/css/default.css
Returned the recent builds on slaves page to its former glory
Added history builds to the revision cell