git aliases

root---Display the root directory of the git tree.

viz---Display QGit.
print remote tracked branch

If there is a remote branch for the current branch, display it.
Squashed 'emacs.d/lisp/gnuplot-mode/' content from commit 6da76ee

git-subtree-dir: emacs.d/lisp/gnuplot-mode
git-subtree-split: 6da76eebd9d02568d94ed34aea8e701a88457f1b
Merge commit '82c16a141c1faebe34fa73db3e3098a933a9aa0a' as 'emacs.d/lisp/gnuplot-mode'
use gitk as viewer

QGit is nice, nicer than gitk, but some things (like constant warning
dialogs) are just too irritating.