House keeping!

- Switched to Silver Surfer from ack.
- Added some performance tweaks for ctrp.
- Removed commented out crust.
- Removed nerdtree. Let's be honest, I've used it once in six months.
  Ctags, ctrlp, ack/ag ftw!.
- Added some plugins autocmd settings for ft/syntax recognition.
- Added rbenv ruby path for things that might need it.
- Get out of my way rodent.
- Removed copy/pasta that doesn't seem to work (anymore). Just use tmux
  and copy mode brah.
Added gitignore.