Include (source) Homebrew-installed bash completions.
Colorize Bash prompt with Solarized colors.

From: https://github.com/necolas/dotfiles
Add a fancy colorized prompt.

Sources: 
- https://github.com/necolas/dotfiles
- http://www.terminally-incoherent.com/blog/2013/01/14/whats-in-your-bash-prompt