[glib] (4 commits) Non-fast-forward update to branch wip/private-rework-3

[Emmanuele Bassi <ebassi src gnome org>]

The branch 'wip/private-rework-3' 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:

 http://live.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  b3b9b50... Add G_PRIVATE_OFFSET
  a2d9488... gio: Use the new private instance data declaration
  32dc065... docs: Clean up the GObject tutorial a bit
  c434fbb... Deprecate g_type_class_add_private()

Commits added to the branch:

  57804c4... Add G_PRIVATE_OFFSET
  5664e08... gio: Use the new private instance data declaration
  525b1b4... docs: Clean up the GObject tutorial a bit
  b99c0a6... Deprecate g_type_class_add_private()