PyGObject 3.10.1 Fixes a Memory Leak and a TypeError

Thanks to Nuno Araujo, PyGObject 3.10.1 fixes a TypeError when setting drag target_list to “None.” Moreover, thanks to Simon Feltman, PyGObject 3.10.1 now uses qdata for wrapper retrieval in toggle reference notifications, and fixes a memory leak for caller allocated GValue out arguments. PyGObject 3.10.1 has been made available as part of the GNOME 3.10.1 desktop environment, which was released this past weekend, bringing various fixes and improvements.