tmux, ultisnip key, python test

- ultisnip expand changed to <c-j>
- css and lass to use 2-wide tabs
- added ,mg -> MakeGreen %
- added ,mn -> tell terminal to test // should be project-conditional
- fixed home bin/path in zshrc
- added python test snippets
- added tmux.conf
- added setup.sh to link dot files
Merge branch 'master' of github.com:bobisme/dot