[gtk] (21 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:

  8bf6a1a... Add GtkSorter, GtkStringSorter, GtkCustomSorter
  6448181... Add GtkMultiSorter
  484f36f... Add GtkNumericSorter
  b7d7cb3... sorter: Add tests
  218bc08... Redo sort list model with GtkSorter
  da1f973... column view: Add some helpers
  db71865... Add GtkColumnViewSorter
  dac5310... column view: Add a sorter property
  5876fd0... column view column: Add a sorter property
  bb03f2e... column view title: Show sort indicators
  39d2ca5... column view: Add a sort-by api
  dceae42... inspector: Use a column view for properties
  6d06cd5... inspector: Use a column view for the resource list
  5e63f9e... Add GtkTreeListRowSorter
  ad69b3e... inspector: Make the resource list sortable
  ffa97ab... inspector: Use a column view for actions
  ae0140d... inspector: Touch up list styling
  2e2a3cb... Small correction

Commits added to the branch:

  59a6a3e... list item factory: Small correction
  3c409a6... Add GtkSorter, GtkStringSorter, GtkCustomSorter
  a55d300... Add GtkMultiSorter
  93e2e5e... Add GtkNumericSorter
  4471171... sorter: Add tests
  3f4b8d2... Redo sort list model with GtkSorter
  0e59cc5... column view: Add some helpers
  376bf37... Add GtkColumnViewSorter
  fdcc452... column view: Add a sorter property
  54ded2a... column view column: Add a sorter property
  27f19ca... column view title: Show sort indicators
  4bfc653... column view: Add a sort-by api
  152c2b9... inspector: Use a column view for properties
  dee6f30... inspector: Use a column view for the resource list
  917b1e2... Add GtkTreeListRowSorter
  9645142... inspector: Make the resource list sortable
  e14c079... inspector: Use a column view for actions
  3e95a7a... inspector: Touch up list styling
  9ec35e1... Add GtkSelectionMonitor
  34856ce... Add GtkMultiSelection
  3a775b1... Add GtkDropDown