[pango] (10 commits) Non-fast-forward update to branch pango2

[Matthias Clasen <matthiasc src gnome org>]

The branch 'pango2' 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:

  ceb1808... context: Reshuffle convenience api
  9392635... Update fontset tests
  8889c2f... Regenerate layout tests
  4d28c63... Fix some compiler warnings
  1b999b8... coretext: Fix font creation
  cc82f60... Update itemize tests
  58b9dc4... Improve test font setup code
  356ebb7... docs: Add a migration guide
  e22e62b... Run all tests on MacOs

Commits added to the branch:

  59e049d... context: Reshuffle convenience api
  d2694a3... Update fontset tests
  25f2e3b... Regenerate layout tests
  47fed07... Fix some compiler warnings
  d3c9f6f... coretext: Fix font creation
  c708c67... Update itemize tests
  853b44f... Improve test font setup code
  f99dd70... docs: Add a migration guide
  f4d9d78... Run all tests on MacOs
  08bfe5d... Allow variant information in face descriptions