[gtk/matthiasc/for-master] (54 commits) ...Merge branch 'columnview-separators' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  f27bd06... columnviewcolumn: Add a menu property (*)
  cb2901e... columnviewtitle: Display a context menu (*)
  c835214... Add a header menu to settings demo (*)
  d02c48f... Add more columns to the settings demo (*)
  0b8cebd... ffmediafile: Add fixes for recent cflags changes (*)
  00f2b13... columnview: Make sure focus can move into cells (*)
  aa38fc7... listbase: Fix leak (*)
  19da93b... Merge branch 'columnview-menu' into 'master' (*)
  a84f622... listitemwidget: Fix focus handling for columnview (*)
  a60c866... listbase: Don't grab_focus() when moving focus (*)
  27ed2cc... Merge branch 'wip/otte/for-master' into 'master' (*)
  befdd8b... columnview: Revise scroll-minimum handling (*)
  f0a0e20... columnview: Implement horizontal scrolling (*)
  d43aace... columnview: Add GtkColumnViewColumn:fixed-width (*)
  aa2d339... columnview: Add a helper (*)
  66e5027... columnview: Add a GtkColumnViewColumn:resizable property (*)
  a1eadde... columnviewcolumn: Add a helper (*)
  f65f959... columnview: Interactive column resizing (*)
  ac082e5... gtk-demo: Make some columns resizable (*)
  50f4e53... Merge branch 'matthiasc/for-master' into 'master' (*)
  5745959... columnviewtitle: Trigger action on release (*)
  c9d5b77... columnviewcolumn: Add reordering helpers (*)
  e637693... columnviewlayout: Use header allocation for titles (*)
  11b4e0d... columnview: Add a GtkColumnView:reorderable property (*)
  5d4893b... columnview: Interactive column reordering (*)
  c58eb9c... columnview: Allow to cancel reorder with Escape (*)
  964d0c2... columnview: Add autoscroll (*)
  2ab1b13... columnview: Add a GtkColumnViewColumn:expand property (*)
  067df8d... columnview: Take expand into account (*)
  1408199... inspector: Expand the object tree (*)
  9617a00... inspector: Expand the property list (*)
  3b9f0ab... inspector: Expand the resource list (*)
  03c1fa4... inspector: Expand the actions list (*)
  5ef427b... gtk-demo: Expand columns in the settings demo (*)
  28f6e27... Add GtkMultiSelection (*)
  a0f04bd... listbase: Add rubberband selection (*)
  7dc458d... Add autoscroll (*)
  14d11eb... listbase: Use a widget for the rubberband (*)
  a9273e1... listbase: Split off rubberband data (*)
  b3a97cb... listbase: Simplify rubberbanding (*)
  03c2202... Add rubberband api (*)
  510f719... gtk-demo: Make gridview demo use rubberbanding (*)
  ebc07d1... printdialog: Port to column view (*)
  7312284... Merge branch 'wip/otte/for-master' into 'master' (*)
  94f1477... Merge branch 'columnview-scrolling' into 'master' (*)
  f13a596... Merge branch 'columnview-resizing' into 'master' (*)
  3ec8f4e... Merge branch 'columnview-reordering' into 'master' (*)
  78a0685... Merge branch 'columnview-expand' into 'master' (*)
  fa37225... Merge branch 'columnview-rubberbanding' into 'master' (*)
  77b65ad... Merge branch 'columnview-printdialog' into 'master' (*)
  ce0dd65... settings demo: Don't select rows (*)
  658e4c5... listview: Use gtk_widget_add_css_class (*)
  4b68362... columnview: Add a property for column separators (*)
  5154693... Merge branch 'columnview-separators' into 'master' (*)

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