added cabal config file, and moved vim into separate folder

* i'm hoping that just the cabal file will be enough to have profiling enabled
  for everything that might need it on a new box. since i havent installed
  anything in particular except ghc-base on the macbook i'll give it a try
* the mustang colorscheme didn't look too great on the macbook, so using the
  /exact/ same .vimrc might not be a good idea. changing the color for the
  basic terminal to be consistent would help, but i don't want to spend that
  much effort customizing while classes are gearing up.
* based on installing on the macbook it definitely looks like just the .vimrc
  and a script to download vundle are ideal, since i had some issues with the
  raw copy