Supports ZSH themes based on which device I'm working. This might get
annoying after awhile, but I think the idea of having the prompt reflect
when I'm on a different machine than my own might be useful.
Adds "cloudtop" alias in ssh config.
I documented my consumption of wpcarro/dotfiles in the README. The dream
is to just clone this repo and run `make install`. We'll get there.
TODO: drop support for OSX
TODO: clean up the rest of this README
