mjt's .vim stuff
See also https://github.com/mjtorn/dotnvim
git clone git://github.com/mjtorn/dotvim.git .vim/
ln -s .vim/vimrc .vimrc
cd .vim/
git submodule update --init
mkdir undo
Some flake8 conf for use with syntastic: https://gist.github.com/mjtorn/9870434