[gtk] (10 commits) Non-fast-forward update to branch cups-deprecation-warnings

[Marek Kašík <mkasik src gnome org>]

The branch 'cups-deprecation-warnings' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  8a77a28... Detect CUPS ≥ 1.7
  aaf211a... cups: Use non-deprecated API
  5256918... Require CUPS >= 2.0

Commits added to the branch:

  c6a42e9... widget: Revert the event translation change (*)
  77b7817... a11y: Stop using child-notify (*)
  68560a9... Update a11y tests (*)
  a0c6d88... Mark a failing reftest as xfail (*)
  b01cf6b... 3.96 (*)
  248c07c... Fix a compiler warning (*)
  4ff578d... Fix the compiler warning, again (*)
  42e1d16... Detect CUPS ≥ 1.7
  a97788c... cups: Use non-deprecated API
  5d7d2e7... Require CUPS >= 2.0

(*) This commit already existed in another branch; no separate mail sent