Make play run on only 127.0.0.1, not 'localhost' also.

Updated instructions for ansible-playbook command.

Switch to git protocol for dotfiles repo.

Fixes geerlingguy#9: Install required roles in current directory.

Fixes geerlingguy#5: Add /etc/sudoers configuration for more Vagrant …

…convenience.

Added Docker to configuration.

Add MacVim to cask apps, and remove unavailable tap.

Run .osx dotfiles.

Split ansible-related config into separate task file.

Updates to work with updated version of geerlingguy.homebrew role.