local/bin: git-repo command for additional repo commands.

a) provides the ability to type |git repo <command>| which my fingers
kept on doing accidentally anyway.
b) provides a few additional commands, the most important of which being
|git repo rebaseall|, which rebases all branches to m/master.
Work-in-progress scripts to do literate python.

unlit strips code out of a .lhs-style file, with or without preserving
line number compatibility.

pylitlint is the beginnings of trying to be able to run pylint on a
literate python file.
Basic vim support for .pylit.
Adding away detection to weechat.