[gtk] (10 commits) Non-fast-forward update to branch dnd-gestures

[Matthias Clasen <matthiasc src gnome org>]

The branch 'dnd-gestures' 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:

  c689a72... iconview: Port to GtkDragSource
  8bc797d... placessidebar: Port to GtkDragSource
  9b5936a... treeview: Port to GtkDragSource
  e9d568a... filechooser: Port to GtkDragSource
  b886005... notebook: Port to GtkDragSource
  1af5e65... tests: Convert to GtkDragSource
  e8ad489... Remove traditional drag source API
  e5e8d25... docs: Mention DND in the migration guide
  5c174cc... Move the rest of the drag-source api over
  7824d8b... Hook up the GtkDragSource docs

Commits added to the branch:

  9846439... iconview: Port to GtkDragSource
  8135bd9... placessidebar: Port to GtkDragSource
  554ccfc... treeview: Port to GtkDragSource
  5ba6e9c... filechooser: Port to GtkDragSource
  c969d59... notebook: Port to GtkDragSource
  87d1196... tests: Convert to GtkDragSource
  27ea6a4... Remove traditional drag source API
  6e61965... docs: Mention DND in the migration guide
  28c3601... Move the rest of the drag-source api over
  5650d5f... Hook up the GtkDragSource docs