[gtk] (20 commits) Non-fast-forward update to branch wip/otte/for-master

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/for-master' 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:

  87b315f... widget: Remove _gtk_widget_is_drawable()
  48b78b5... widgetfocus: Remove unnecessary check

Commits added to the branch:

  bfebc2b... icontheme: Remove gtk_icon_theme_get_default() (*)
  b713b9f... icontheme: Remove async APIs (*)
  bbbe39f... icontheme: Make text direction a lookup argument (*)
  10023b5... icontheme: Remove GTK_ICON_LOOKUP_USE_BUILTIN (*)
  4c3363b... icontheme: Remove NO_SVG and FORCE_SVG flags (*)
  48b9791... icontheme: Remove gtk_icon_theme_rescan_if_needed() (*)
  3bba52e... icontheme: Remove crayon APIs (*)
  7e8d821... Revert "Break out cairo color matrix recoloring to gdk_cair (*)
  4b96ba5... icontheme: Remove gtk_icon_get_base_size() and gtk_icon_get (*)
  544cd1a... icontheme: Clean up includes (*)
  f7a5dd7... icontheme: Remove contexts (*)
  571021c... icontheme: Pass fallbacks as optional argument to lookup_ic (*)
  138de60... icontheme: Remove GENERIC_FALLBACKS (*)
  410541f... Rename GtkIcon to GtkIconPaintable (*)
  cc22987... Merge branch 'wip/otte/icontheme' into 'master' (*)
  3cb150a... widget: Remove _gtk_widget_is_drawable()
  a163571... widgetfocus: Remove unnecessary check
  3bb8b56... treelistmodel: Small documentation tweaks
  6640881... maplistmodel: Add an example to the docs
  903af75... widget: Skip not-drawable widgets in snapshot_child

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