[gtk] (3 commits) Non-fast-forward update to branch wip/otte/bitset

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/bitset' 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:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  e8b4092... multiselection: Track items across resorts
  66aa025... gtk-demo: Port listview-colors demo to multiselection again
  8cc88c3... gtk: Remove GtkPropertySelection

Commits added to the branch:

  cdc6799... multiselection: Track items across resorts
  e4580fd... gtk-demo: Port listview-colors demo to multiselection again
  ca918d0... gtk: Remove GtkPropertySelection