railsbridge/installfest — pull request #54 by reneedv (2012-05-20 17:34:12+00:00)
Title: Skip Homebrew/git if git is already installed

git is being installed with the XCode command line tools with the most recent version of Lion (10.7.4), so the homebrew and git installs can be skipped if they already have git. So I added a check, a message, and a link for students to skip the homebrew and git install if it's already installed.