[gtk] (18 commits) Created branch default-handling

[Matthias Clasen <matthiasc src gnome org>]

The branch 'default-handling' was created.

Summary of new commits:

  6b9bb4e... widget: Add a convenience api to activate actions
  3637633... window: Add a default-widget property
  776adaf... Rename gtk_window_set_default
  ba14c9c... popover: Add a default-widget property
  28ed465... window: Add a gtk.activate-default action
  6c34be3... popover: Add a gtk.activate-default action
  aa6e2f3... label: Activate default via action
  cfbe8df... entry: Activate default via action
  05a2cab... mount operation: Handle default activation via action
  5bf840a... file chooser: Stop using gtk_window_activate_default
  1be08b2... Drop gtk_window_activate_default
  3947090... Stop using gtk_widget_grab_default
  11627db... widget-factory: Stop setting has-default in ui files
  3d5bd85... widget: Remove special handling for has-default
  00f5e6c... widget: Drop gtk_widget_grab_default
  9ef9098... widget: Remove special handling of has-focus
  ceffc58... Drop gtk_window_activate_focus
  c813c03... inspector: Stop showing default widget in misc