[glib] (5 commits) Non-fast-forward update to branch finalize-speedups

[Matthias Clasen <matthiasc src gnome org>]

The branch 'finalize-speedups' 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:

  29cb440... Add g_datalist_id_remove_multiple
  78b961f... gobject: Use g_datalist_id_remove_multiple
  4162161... gobject: Don't do duplicate work
  51f134e... gobject: Speed up finalization
  07a2c88... Artificially limit g_datalist_id_remove_multiple

Commits added to the branch:

  911ec0f... Add g_datalist_id_remove_multiple
  11bb9a5... gobject: Use g_datalist_id_remove_multiple
  e1e2757... gobject: Don't do duplicate work
  2107e11... gobject: Speed up finalization
  818ea3f... Artificially limit g_datalist_id_remove_multiple