Tweak vimrc for Dotmatrix overrides
Tweak vimrc for Dotmatrix overrides

This brings it closer back to the default vim that I'm used to.
Specificall, this commit:

- turns off the visualbell in vim because I found it frustrating and
  annoying
- turns off the color wildmenu and makes it autocomplete the first
  option and cycle through what's available

brettchalupa/dotfiles