My main feature request would be a way to enforce a PR must be a fast-forward merge.
I tend to have a small set of words I prefix each git commit summary with (Add, Remove, Fix, etc). If I could verify summaries match that pattern that would be awesome.
Also, if it is possible to enforce the guidelines specified in http://tbaggery.com/2008/04/19/a-note-about-git-commit-messa... I'd be so happy.