Job file gets its matching comaster

moved the method there from job.

Also updated a few comments.
Warning about reordering comasters
Bumped up version to 0.9.1
Bump artifact version to 1.0.0
Merge remote-tracking branch 'origin/master' into hr-cmstrs

* origin/master:
  Bump artifact version to 1.0.0
  Bumped up version to 0.9.1