These dotfiles assume that you're using Boxen, but can easily be adapted for a non-Boxen environment as well.
Boxen will symlink the .bashrc in this repository into your home folder. To get these files loaded into your environment, you simply need to update your ~/.profile:
# After this line:
source /opt/boxen/env.sh
# Add this line:
source ~/.bashrc
Then restart your Terminal.