[pango] (15 commits) Non-fast-forward update to branch wip/khaled/fribidi

[Khaled Hosny <khaledh src gnome org>]

The branch 'wip/khaled/fribidi' 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:

  a108fe5... Switch to using external FriBiDi
  12e64e9... Drop now unused mini-fribidi
  de9ee78... Avoid converting to UTF-32 for FriBiDi
  349ee6d... Use the new FriBiDi API when available

Commits added to the branch:

  53c483c... Add some font description tests (*)
  95c2aaa... Test attribute iterators (*)
  efa66e7... Add initial support for OpenType font variations (*)
  3ccb608... Add some tests with variations (*)
  a78ce2a... pango-view: Add a font-variations example (*)
  4713461... Add an out-of-range value (*)
  6a9c066... [fc] Request variable fonts from fontconfig (*)
  905ccc5... [fc] Only set variations if non-empty (*)
  e4e3053... [cairo] Don't set font variations on cairo_font_options_t (*)
  cb84dd0... Make variations test more generic (*)
  b970898... Merge branch 'font-variations' (*)
  a041559... Switch to using external FriBiDi
  244b4a7... Drop now unused mini-fribidi
  b6f5b92... Avoid converting to UTF-32 for FriBiDi
  4bbeddb... Use the new FriBiDi API when available

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