add commit count & commit-by-author count

[dezren39]

(if I can get the hang of python, i do hope to help with some of these. if you'd prefer a different place for features i understand that too)

[asharov]

I appreciate your interest and ideas, and keep then coming here. It's always best to get improvement suggestions from people actually using the tool. And if you feel up to it, code contributions are of course welcome, but don't feel like you have to do it.