[gtk] (30 commits) Non-fast-forward update to branch wip/otte/dnd

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/dnd' 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:

  eecb1c2... gdk: Remove gdk_surface_register_dnd()
  92dc34d... x11: Register DND atoms with all other atoms
  7afcc38... filechooserwidget: Stop using selection data
  8df2e34... droptarget: Remove selectiondata read functions
  d177b72... selection: Remove GtkSelectionData
  a63310b... gdk: Remove gdk_utf8_to_string_target()

Commits added to the branch:

  76e115b... Add a warning when a grab fails (*)
  767849d... Remove GdkSeatGrabPrepareFunc from headers (*)
  b002572... Merge branch 'wip/otte/dnd' into 'master' (*)
  be25905... Fix gdk docs build (*)
  1af94d0... x11: Fix a crash in event handling (*)
  011f58f... Merge branch 'matthiasc/for-master' into 'master' (*)
  ddd1267... Fix a hard-to-spot typo (*)
  b8db9e1... Merge branch 'matthiasc/for-master' into 'master' (*)
  71323a8... wayland/popup: Remove unnecessary checks when mapping popup (*)
  f0b0076... wayland/popup: Emit un-withdrawn event earlier (*)
  7edfcc3... Merge branch 'wip/wayland-fix-popup-grabs' into 'master' (*)
  833b564... x11: Avoid crashes in dnd (*)
  f93d0f8... x11: Keep a ref on GdkDrag objects (*)
  14122d1... x11: Export gdk_x11_surface_get_root_coords privately (*)
  7c1cfc5... x11: Fix dnd coordinate handling (*)
  ec383a2... Add detail to gdk_drag_begin docs (*)
  8d5cece... Merge branch 'x11-dnd-fixes' into 'master' (*)
  b0f6996... gdk: Remove gdk_surface_register_dnd()
  992173c... x11: Register DND atoms with all other atoms
  a19066b... filechooserwidget: Stop using selection data
  a4f7e2c... droptarget: Remove selectiondata read functions
  a62d78b... selection: Remove GtkSelectionData
  6442ec2... gdk: Remove gdk_utf8_to_string_target()
  6c61c7b... Don't use GdkAtom where const char * is used
  28dced5... gdk: Remove gdk_text_property_to_utf8_list_for_display()
  4280ca2... device: gdk_device_list_axes() => gdk_device_get_axis_names
  6e935d4... x11: Get rid of GdkAtom and APIs supporting it.
  60307da... wayland: Replace final mention of GdkAtom
  f536cf0... win32: Get rid of GdkAtom
  cc7c1fe... gdk: Remove GdkAtom

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