Making adduser() take username from environment
Updating install_python() to Python 2.7 and installing virtualenv with pip, not easy_install
Fixing install_python() mkdir command
Making install_git() automatically find the most recent git version to install
Makes sure apt_get_update() updates repos only once per day, so it can be invoked before every install
Stop uploading private key - better to use ForwardAgent (ssh -A) instead
Commenting out vagrant() since work is not done yet
Adding hostname()
Including hostname() in bootstrap()