[gtk] (7 commits) Non-fast-forward update to branch matthiasc/for-master

[Matthias Clasen <matthiasc src gnome org>]

The branch 'matthiasc/for-master' 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:

  395521f... x11: Plug a memory leak

Commits added to the branch:

  e1a0171... gtkrange: group gestures the right way around (*)
  0252ae2... Merge branch 'wip/carlosg/range-autoscroll' into 'master' (*)
  986f721... filterlistmodel: Don't filter out every 513th element (*)
  4d90846... testsuite: Be more exhaustive (*)
  d1a068e... sorter: Remove a return_if_fail() (*)
  4cd92f9... Merge branch 'wip/otte/for-master' into 'master' (*)
  d441e71... x11: Plug a memory leak

(*) This commit already existed in another branch; no separate mail sent