[gtk] (4 commits) Non-fast-forward update to branch wip/otte/G_TYPE_POINTER

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/G_TYPE_POINTER' 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:

  06caa5d... surface: Get rid of G_TYPE_POINTER
  89c673b... pathbar: Use correct GType in signal
  53736cc... placessidebar: Don't use G_TYPE_POINTER
  84741d4... filesystemmodel: Don't use G_TYPE_POINTER
  5cc155e... searchengine: Rename private headers

Commits added to the branch:

  2e48ff3... pathbar: Use correct GType in signal
  4fbef5f... placessidebar: Don't use G_TYPE_POINTER
  7366f50... filesystemmodel: Don't use G_TYPE_POINTER
  e2d321a... searchengine: Rename private headers