[gtk] (24 commits) Non-fast-forward update to branch wip/otte/listview

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/listview' 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:

  a2548ed... glrenderer: Don't return NULL form render_texture()
  c5d35ac... flattenlistmodel: Fix indentation
  c837312... listview: Fix return_if_fail()s
  d87b1c2... listitemmanager: Change the way listitems are handled
  7127a4a... listbase: Compare with the right adjustment
  0489032... listbase: Store the proper side
  b10fbeb... listitemmanager: Unify tracker updates
  beb60fd... listitemmanager: Allow properties assigned to trackers
  958ce19... listview: Add ::focus-position and ::focus-item
  c20ebc1... demo: Use the new GtkListiew::focus-item property
  a4b380a... gridview: Dump some files
  e8ef1da... DEBUG: Add debug prints to list item manager
  af66fc6... Add GtkSectionModel
  8b13e1c... Implement GtkSectionModel for all selection models
  6731e4a... flattenlistmodel: Implement GtkSectionModel
  33139c1... sortlistmodel: Implement GtkSectionModel
  f2c0b2b... testsuite: Add section tests to sortlistmodel test
  fe6f432... sortlistmodel: add a fast path for get_section()
  6a412f8... listview: Implement ::section-factory property
  9655a22... listview: Split out a function
  cb202c1... gridview: Add support for sections
  0b7c78c... css: Add some CSS for sections
  6b56ca0... demo: Add a listview sections demo
  f011aa6... gtk-demo: Add a sectioned view to the filebrowser demo

Commits added to the branch:

  1ff66df... glrenderer: Don't return NULL form render_texture()
  7c05f57... flattenlistmodel: Fix indentation
  f0e7463... listview: Fix return_if_fail()s
  81f73ee... listitemmanager: Change the way listitems are handled
  378e4b5... listbase: Compare with the right adjustment
  0d32b1f... listbase: Store the proper side
  a59328c... listitemmanager: Unify tracker updates
  475dbd3... listitemmanager: Allow properties assigned to trackers
  968c9e8... listview: Add ::focus-position and ::focus-item
  637411b... demo: Use the new GtkListiew::focus-item property
  cf1f2a6... gridview: Dump some files
  9436033... DEBUG: Add debug prints to list item manager
  0ea55ac... Add GtkSectionModel
  920ba63... Implement GtkSectionModel for all selection models
  5427e59... flattenlistmodel: Implement GtkSectionModel
  42ff8d4... sortlistmodel: Implement GtkSectionModel
  c3ffffc... testsuite: Add section tests to sortlistmodel test
  1325dcf... sortlistmodel: add a fast path for get_section()
  7908046... listview: Implement ::section-factory property
  352775e... listview: Split out a function
  3909a60... gridview: Add support for sections
  411def9... css: Add some CSS for sections
  00ffa34... demo: Add a listview sections demo
  87da221... gtk-demo: Add a sectioned view to the filebrowser demo