[pango] (14 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:

  ec4e467... Drop PangoFontsetSimple
  cfe6771... Drop some font family apis
  0d67a8a... Cosmetics
  1be188e... Make PangoFontMetrics struct private
  2426df7... Bump the harfbuzz dependency

Commits added to the branch:

  7dfcfb6... Drop PangoFontsetSimple
  3cde31b... Drop some font family apis
  7b4c661... Cosmetics
  3044a46... Make PangoFontMetrics struct private
  8cb10b2... Bump the harfbuzz dependency
  772240e... Split off PangoFontSetCached
  83f4236... Rename PangoHbFontMap to PangoFontMap
  01fb23e... Add default fontmap API
  d861362... Thin out pangocairo code
  0fa4a74... Add platform-specific headers
  ad353ef... Drop pango_cairo_create_layout
  408cc04... Clean up build machinery
  da64d02... Store cairo_font_options in the context
  7259b76... Apply font options