Usage
git clone <url> ~/.dotfiles
cd ~/.dotfiles
stow -nv tmux # see what would be done
stow -v tmux # actually link the files
Host-specific changes
cd ~/.dotfiles
git checkout -b <hostname> # create a host-specific branch
git push -u origin <hostname> # push the branch
Update a local checkout
git pull --rebase origin master
git submodule update --init