Please look at this patch.  Ignore the bad commit message for now, I'm
trying to figure out how to edit that :P.

I've spent far too long looking at git documentation and source code.  I
think this is the best way to enable this feature.  In fact I really
don't think there is another way to implement this feature that doesn't
rely on the "autosquash" git feature.

I found the hack located in vc-git-modify-change-comment' of setting
"GIT_SEQUENCE_EDITOR=:" on the internet and I don't understand how it
works.

Also I'm not really sure what the 'vc-dispatcher-browsing' function is
supposed to do but it's getting in my way.  Like are 'diff-mode' buffers
a "directory browser buffer"?  I don't understand the intent here.

Also you'll noticed I deleted some comments in vc.el.  That's mainly to
highlight them so we can talk about them now.  Is there a good way to
stop users from editing remote commits?


I feel like I should probably just keep working on this and get it more
polished and answer some of my own questions before posting here but I'm
getting kind of frustrated with this.  I am many hours deep into this
problem.

Thanks,

Morgan