[gtk] (18 commits) Non-fast-forward update to branch prop-list

[Matthias Clasen <matthiasc src gnome org>]

The branch 'prop-list' 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:

  80f9a0d... filter: Update tests
  1abcaca... filter: Small doc tweaks
  790e357... Add GtkSorter
  1b61f42... sorter: Add tests
  09a2127... Redo sort list model with GtkSorter
  0981d84... column view: Add some helpers
  1d0d459... Add GtkColumnViewSorter
  2ba52e3... column view: Add a sorter property
  cee0bc4... column view column: Add a sorter property
  27b2331... column view title: Show sort indicators
  cee552f... column view: Add a sort-by api
  5d7a17f... inspector: Use a column view for properties
  d8de09a... inspector: Use a column view for the resource list
  b0be50d... inspector: Use a column view for actions
  c8bfcd8... inspector: Touch up list styling

Commits added to the branch:

  dea0397... Add missing listmodel and selection types to the docs
  65ef4b6... filter: Update tests
  08beaa6... filter: Small doc tweaks
  e6fe7aa... Add GtkSorter
  49df6d9... Add GtkMultiSorter
  8ff0aa7... sorter: Add tests
  6f76d04... Redo sort list model with GtkSorter
  c771704... column view: Add some helpers
  1a75d93... Add GtkColumnViewSorter
  1d54fde... column view: Add a sorter property
  82c86c3... column view column: Add a sorter property
  7ae4380... column view title: Show sort indicators
  3597f13... column view: Add a sort-by api
  0d42512... inspector: Use a column view for properties
  3b4b0b2... inspector: Use a column view for the resource list
  29b4942... inspector: Use a column view for actions
  2cc064f... inspector: Touch up list styling
  a45e4e8... any filter: Add a missing precondition