[gtk] (16 commits) Non-fast-forward update to branch wip/otte/sortlistmodel2

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/sortlistmodel2' 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:

  58cfa53... sortlistmodel: Add an incremental property
  2fd8b20... sortlistmodel: Split the SortItem into 2 arrays
  152470b... sorter: Introduce GtkSortKeys
  4cd981b... sortlistmodel: Use GtkSortKeys
  dc9e4d9... sortkeys: Add an equal sort keys
  a64e43c... stringsorter: Implement GtkSortKeys
  51babf4... numericsorter: Implement GtkSortKeys
  deb2226... treelistrowsorter: Implement GtkSortKeys
  adde8e0... multisorter: Implement GtkSortKeys
  fbecba9... sortlistmodel: Make sort stable again
  880b897... sortlistmodel: Properly compute runs
  635f8ce... gtk-demo: Make colors demo do incremental sorting
  8cbda2a... sortlistmodel: Make key generation part of the step functio
  89e5e49... timsort: Add progress estimation
  18410cc... sortlistmodel: Add progress estimation
  0777105... gtk-demo: Add a progress bar when the colors demo resorts

Commits added to the branch:

  283c3b7... sortlistmodel: Add an incremental property
  8c608e9... sortlistmodel: Split the SortItem into 2 arrays
  e34c7e6... sorter: Introduce GtkSortKeys
  3b24c8a... sortlistmodel: Use GtkSortKeys
  814c88f... sortkeys: Add an equal sort keys
  0970077... stringsorter: Implement GtkSortKeys
  659fe52... numericsorter: Implement GtkSortKeys
  554defa... treelistrowsorter: Implement GtkSortKeys
  eaaa287... multisorter: Implement GtkSortKeys
  c03383d... sortlistmodel: Make sort stable again
  bf5c540... sortlistmodel: Properly compute runs
  e8c4e12... gtk-demo: Make colors demo do incremental sorting
  5b18968... sortlistmodel: Make key generation part of the step functio
  703f8b8... timsort: Add progress estimation
  2b19e2f... sortlistmodel: Add progress estimation
  b23f793... gtk-demo: Add a progress bar when the colors demo resorts