2678: update a-r-p-i to set the owner_uuid on the newly created job when the pi belongs to a group. also, update crunch-dspatch to create the log lines with the group's owner_uuid.
Merge branch 'master' into 2678-owned_by
Merge branch '2756-eventbus-in-workbench' into 2678-owned_by
Merge branch 'master' into 2678-owned_by
2678: upon Tom's feedback, setting owner_uuid of the pi whether or not the pi belongs to a group.
Merge branch '2756-eventbus-in-workbench' into 2678-owned_by

Conflicts:
	services/api/script/crunch-dispatch.rb
Merge branch 'master' of git.curoverse.com:arvados