Put all vim files into vim directory for GNU Stow.
Add YCM stuff and Vundle to .vimrc. Some other misc changes.
craftyrc: SMP option not needed anymore.
Put all zsh files into zsh directory for GNU Stow.
Put all scripts into home-bin directory for GNU Stow.
Put email signatures into signature directory for GNU Stow.
Put git config into git directory for GNU Stow.
Put misc stuff into misc directory for GNU Stow.