Freeze break request for mutter and gnome-shell

[Rui Tiago Cação Matos <tiagomatos gmail com>]

Hi,

I'd like to request a freeze break request for these 2 simple fixes:

gnome-shell crash when taking screenshots in wayland sessions:
https://bugzilla.gnome.org/show_bug.cgi?id=771656

mutter wrongly offsetting area screenshots:
https://bugzilla.gnome.org/show_bug.cgi?id=771502

Thanks,
Rui