[gtk] (30 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:

  5087ddf... marshalers: Add another
  5b6343b... docs: Add content format api
  b140e53... Add a GtkDragSource object
  bb45575... dnd: Patch up gtk_drag_get_source_widget
  70d721e... label: Port to GtkDragSource
  00ab41f... linkbutton: Port to GtkDragSource
  bde3863... calendar: Port to GtkDragSource
  b8ebe37... entry: Port icon dnd to GtkDragSource
  9c28c07... text: Convert to GtkDragSource
  d85c431... textbuffer: Add a content provider api
  65018ba... textview: Port to GtkDragSource
  836ddb9... Add (de)serializers for GdkRGBA
  02c9f1c... Add a generic callback content provider
  4cde1c5... colorbutton: Port to GtkDragSource
  c3b3fe4... colorswatch: Convert to GtkDragSource
  90f9537... pathbar: Convert to GtkDragSource
  45e72a9... gtk-demo: Convert the clipboard demo to GtkDragSource
  6b31016... iconbrowser: Port to GtkDragSource
  0b35b50... Add another callback-based provider
  7912c59... iconview: Port to GtkDragSource
  b68da21... placessidebar: Port to GtkDragSource
  3c1723f... treeview: Port to GtkDragSource
  a709b95... filechooser: Port to GtkDragSource
  8058ed1... notebook: Port to GtkDragSource
  8c62421... tests: Convert to GtkDragSource
  ebd27e2... Remove traditional drag source API
  a214d98... docs: Mention DND in the migration guide
  f964d62... Move the rest of the drag-source api over
  ee74fc4... Hook up the GtkDragSource docs

Commits added to the branch:

  7a1aefc... Fix the previous commit (*)
  2385013... marshalers: Add another
  9be0609... docs: Add content format api
  9e9f42b... Add a GtkDragSource object
  0791686... dnd: Patch up gtk_drag_get_source_widget
  76fa04c... label: Port to GtkDragSource
  6fecd19... linkbutton: Port to GtkDragSource
  94b460f... calendar: Port to GtkDragSource
  e1cf66a... entry: Port icon dnd to GtkDragSource
  714b717... text: Convert to GtkDragSource
  db8450c... textbuffer: Add a content provider api
  51201a9... textview: Port to GtkDragSource
  3066c0d... Add (de)serializers for GdkRGBA
  0cc2ade... Add a generic callback content provider
  adc8e9a... colorbutton: Port to GtkDragSource
  3779058... colorswatch: Convert to GtkDragSource
  627688f... pathbar: Convert to GtkDragSource
  964ef77... gtk-demo: Convert the clipboard demo to GtkDragSource
  b56b839... iconbrowser: Port to GtkDragSource
  6f19ec5... Add another callback-based provider
  bf3a9db... iconview: Port to GtkDragSource
  c4c7149... placessidebar: Port to GtkDragSource
  fdc8fbc... treeview: Port to GtkDragSource
  6fffd74... filechooser: Port to GtkDragSource
  de0d26c... notebook: Port to GtkDragSource
  0881578... tests: Convert to GtkDragSource
  5708761... Remove traditional drag source API
  004897f... docs: Mention DND in the migration guide
  3409005... Move the rest of the drag-source api over
  5796bed... Hook up the GtkDragSource docs

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