Facebook Support.

* Modified setup.sh to handle .pkg files, since that's how the facebook SDK is packaged.
* Added Facebook config Info.plist (and re-ordered items so URL Schemes are at the bottom,
  since you need to modify one).
* Hooked up facebook login button with super simple workflow.
I reworked this a bit to work with either 'zip' or 'pkg' files, since the Facebook SDK is a pkg... :-(