Restrict project details data to commit builds
Restrict project details data to commit builds

Summary:
Part of the move to use build_type everywhere.
Stats for cq/snapshot/snapshot test builds are likely misleading,
so this limits the stats to commit builds (automatic or manual).

Test Plan: Unit

Reviewers: treaster

Reviewed By: treaster

Subscribers: changesbot

Differential Revision: https://tails.corp.dropbox.com/D188870

dropbox/changes,dropbox/changes,dropbox/changes,dropbox/changes