Lots of little tweaks here and there.

Added a keybinding to kill buffers in .emacs
Added an emacs daemon to xinitrc because...
Added a dmenu replacement to xmonad.hs that can see my emacsclient script (xi)
Added optimus prefix to my zsh environment
Added automatic directory pushing into zshrc so I can move "back" and "forth" like a browser.

Modified gitignore to ignore extra xmonad build files, and ignore itself while we're at it.