fix ssh key issues
fix GitGutterToggle mapping in vimrc
Merge pull request #25 from caarlos0/ssh

fix SSH issues
Remove `brew update` from install

`brew` is often broken on people's systems if it's been installed for a while.
Installing maximum-awesome is *not* the right way to find out.
Merge pull request #27 from dhoizner/fix/toggle_git_gutter

fix GitGutterToggle mapping in vimrc
Merge pull request #44 from square/remove-brew-update

Remove `brew update` from install
Replace Command-T with CtrlP.vim
Update README
Back ctrlp with ag, because it's super fast

Also, I think we should definitely clear the cache when vim exits - imagine
switching branches, opening vim and not finding your files.
Bring back caching
Merge pull request #41 from square/riley/ctrlp

Replace Cmd-T with Ctrl-P
Only <CR> once
prevent :filetype off from causing bad exit status

Fixes https://github.com/square/maximum-awesome/issues/42
as discussed
Merge pull request #64 from sparecycles/fix-exit-status

prevent :filetype off from causing bad exit status
cc: @sparecycles @rudle
Merge pull request #58 from square/riley/fix-ctrlp-refresh

,T to reload CtrlP broken
cc: @strongriley