Summarize the number of inline comments when publishing a review

We always include a short message indicating the number of draft
comments that were published, this triggers Gerrit to always display
a top-level change message even though no scores were modified and
no cover letter was written by the reviewer.

Bug: issue 396
Change-Id: I1f7a1854b1a12d0ff5e5d27a5e077247b0fb4c71
1 file changed