Deployment improvements

Replace deploy.sh with deploy.py
Some updates to setup scripts, for more consistency
Split out some common unix setup tasks into a script that both mac and
linux scripts call.

TODO.org

@@ -1,5 +1,4 @@
-* Dotfiles
-** Change deploy script to python
 * DOOM Emacs
 Jump to favorite files
 Figure out emacs-based terminals
+Figure out anaconda mode virtualenvs