[gtk-demo] appwindow.py: set AboutDialog parent
[gtk-demo] appwindow.py: set AboutDialog parent

davidmalcolm/pygobject,davibe/pygobject,davidmalcolm/pygobject,sfeltman/pygobject,GNOME/pygobject,davidmalcolm/pygobject,pexip/pygobject,davibe/pygobject,GNOME/pygobject,choeger/pygobject-cmake,davibe/pygobject,pexip/pygobject,sfeltman/pygobject,thiblahute/pygobject,thiblahute/pygobject,MathieuDuponchelle/pygobject,choeger/pygobject-cmake,jdahlin/pygobject,davibe/pygobject,MathieuDuponchelle/pygobject,choeger/pygobject-cmake,sfeltman/pygobject,GNOME/pygobject,jdahlin/pygobject,MathieuDuponchelle/pygobject,jdahlin/pygobject,pexip/pygobject,thiblahute/pygobject