Fix to work with PyGObject 3
Fix to work with PyGObject 3

If the major versions do not match pygobject_init() fails.
GNOME/libpeas,chergert/libpeas,chergert/libpeas,Distrotech/libpeas,GNOME/libpeas,chergert/libpeas,Distrotech/libpeas,Distrotech/libpeas,gregier/libpeas,gregier/libpeas,gregier/libpeas,gregier/libpeas