[gtk] (12 commits) Created branch state-saving

[Matthias Clasen <matthiasc src gnome org>]

The branch 'state-saving' was created.

Summary of new commits:

  2c8a68b... widget: Add state saving plumbing
  4ee5cc8... range: Add default state saving
  ddc9b99... text: Add default state saving
  65a4698... colorchooserwidget: Add default state saving
  b5e4bf7... switch: Add default state saving
  6e1a32b... paned: Add default state saving
  fe6e757... stack: Add default state saving
  d12faa4... passwordentry: Add default state saving
  892daa9... checkbutton: Add default state saving
  6ba0622... togglebutton: Add default state saving
  5cadacb... Add a state-saving test
  9649abf... application: Add state saving