Move .gitignore and ignore vim/bundle.
Remove submodule for Colemak.vim.
Remove explicit 'nocompatible' from vimrc.

Vim automatically sets 'nocompatible' when it encounters a user vimrc.
Remove hostname for now.

I only use one computer at the moment.
Remove Scala and Cool vim files.
Remove mpvim.

I'll use a Subversion checkout with pathogen.vim instead, so I don't
have to keep updating this repository to match the MacPorts one.
Remove nginx vim files.