[nautilus] (19 commits) Created branch gtk3-breakage

[Cosimo Cecchi <cosimoc src gnome org>]

The branch 'gtk3-breakage' was created.

Summary of new commits:

  73079b0... [src] don't use GtkComboBox text APIs (#632651)
  366dd9b... preferences: use GtkComboBoxText in the GtkBuilder file
  11ac9a6... preferences: cleanup expand/fill flags
  3c533c6... build: bump GTK+ required version
  1f1d1cb... application: go back to libunique for now
  3d595e7... general: use new GtkScrollable interface
  e9fd436... application: split SmClient code in its own module.
  b0a44ba... application: replace custom GIcon custom load/save code wit
  1e27315... application: make NautilusApplication a GtkApplication subc
  064f94f... main: adapt to GtkApplication changes
  05f6471... [src] use new GtkApplication API to handle windows
  32bb696... desktop-window: monitor the desktop dir key from NautilusDe
  5684156... application: make sure to initialize GTK+ during _startup()
  c15a549... application: move other init/cleanup functions in the app c
  ec70cb2... application: remove get_n_windows()
  69b3e2a... application: add the desktop windows to the application win
  e2ea22f... application: don't unref unconditionally
  0f0ae6d... application: cleanup
  7edc664... application: respect the 'exit-with-last-window' setting.