[gtk] (16 commits) Non-fast-forward update to branch matthiasc/for-master

[Matthias Clasen <matthiasc src gnome org>]

The branch 'matthiasc/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:

  cf17ebb... bitset: Cosmetic documentation changes
  1ba5885... stack: Cosmetic documentation fixes
  accf9b4... shortcuts: Use GTK_DEBUG_KEYBINDINGS
  ec42fc0... Drop GTK_DEBUG_SHORTCUTS
  75ecdd2... wayland: Respect GDK_DEBUG=default-settings
  15b63dd... testsuite: Don't pass GDK_DEBUG for release builds
  2b4ad36... gdk: Better help for GDK_DEBUG
  47af08a... gsk: Better help for GSK_DEBUG
  aaebef3... gtk: Better help for GTK_DEBUG
  2d7a9bd... widget: Avoid uninitialized access
  ed0216e... Add g_intern_static_string to valgrind suppressions

Commits added to the branch:

  ddcba4d... bitset: Cosmetic documentation changes
  7c98af6... stack: Cosmetic documentation fixes
  4d7d031... gdk: Small documentation fixes
  9dff4d6... stack: Remove nonexisting api from headers
  334f954... sorter: Some doc corrections
  7047d68... gtk: Add some missing symbols to the docs
  5d9bcfb... stringlist: Cosmetic documentation fix
  2765ced... shortcuts: Use GTK_DEBUG_KEYBINDINGS
  0cfa3d1... Drop GTK_DEBUG_SHORTCUTS
  d2df8b6... wayland: Respect GDK_DEBUG=default-settings
  6a7580e... testsuite: Don't pass GDK_DEBUG for release builds
  581192f... gdk: Better help for GDK_DEBUG
  b53ea88... gsk: Better help for GSK_DEBUG
  35111ed... gtk: Better help for GTK_DEBUG
  407c362... widget: Avoid uninitialized access
  6fdf6d5... Add g_intern_static_string to valgrind suppressions