Update mutter to 3.23

[Jeremy Bícha]

mutter 3.23/3.24 is required for gnome-shell 3.23/3.24.

mutter is actually now using a normal versioned library (so the library is now libmutter-0-0 instead of libmutter0i)

We need to make sure that Budgie still works with the new mutter.

This transition is intertangled with the gjs transition. gjs is now using mozjs24 instead of mozjs38. gnome-sushi needed a rebuild and gnome-shell needs some code changes (included in gnome-shell 3.23).

Everything except for budgie-desktop is staged in the GNOME3 Staging PPA:
https://launchpad.net/~gnome3-team/+archive/ubuntu/gnome3-staging/+packages?field.series_filter=zesty

Affected Packages
=================
gjs 1.46 > 1.47.90
mutter 3.22 > 3.23.*
gnome-shell 3.22 > 3.23.*
gnome-shell-extensions 3.22 > 3.23.*
budgie-desktop
gnome-sushi

[Launchpad Janitor (janitor)]

This bug was fixed in the package mutter - 3.23.90-0ubuntu1

---------------
mutter (3.23.90-0ubuntu1) zesty; urgency=medium

  * New upstream release (LP: #1662805)
  * libmutter0 has been renamed upstream to libmutter-0-0
  * Rename libmutter-dev to libmutter-0-dev too
  * debian/control.in:
    - Drop obsolete Conflicts/Replaces now that the library
      uses different file names
  * Drop patches applied in new release:
    - git_dont_set_unavailable_scroll_methods.patch
    - git_flush_all_swap_notifies_on_idle.patch

 -- Jeremy Bicha <email address hidden> Thu, 16 Feb 2017 05:14:28 -0500