mono/MonoGame — pull request #854 by danzel (2012-10-11 07:51:37+00:00)
Title: Make the GameCenter Integration work when building and running with iOS6

I finally tried doing GameCenter integration using MonoGame and found it didn't work.
This fixes up the iOS Guide class to work.

Previously this.ParentViewController was always null, so we'd just crash when trying to present.