Turn syntax highlighting on by default in vim
Wrap on `git commit` descriptions

In descriptions like these, we should wrap according to how Git suggests
we break (72 characters).
Merge branch 'master' of https://github.com/holman/dotfiles
Add a python/install.sh script

Ideally I want to just have one script/install script that runs ./install.sh in
every directory in my dotfiles. Then we have a loose framework to build up machines.
But I'm too lazy, so pulls accepted. :)