git-blame.el: Change how blame information is shown.
git-blame.el: Change how blame information is shown.

It is more customizable, and uses a line prefix to show the commit.

Signed-off-by: David Kågedal <6b0169ea4de5af3efdb9be68ea98682ea5f7d9f3@lysator.liu.se>
Signed-off-by: Shawn O. Pearce <f01032651c12a22b2103346ba96b3b6b231f9d3c@spearce.org>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git