ajoberstar/grgit — pull request #38 by itoed (2014-10-03 05:32:17+00:00)
Title: Fix #37: Add orphan option in checkout

As per the [JGit API](http://download.eclipse.org/jgit/site/3.5.0.201409260305-r/apidocs/index.html), `setOrphan` is available since 3.3.