mono/monodevelop — pull request #142 by knocte (2011-12-27 18:25:34+00:00)
Title: Core: Prevent NRE when scanning Project references

There may be some references which have their
Package property with a null value (for instance
the dbus-sharp one in Banshee).

This fixes http://bugzilla.xamarin.com/show_bug.cgi?id=2648