[gtk] (10 commits) Non-fast-forward update to branch columnview-scrolling

[Matthias Clasen <matthiasc src gnome org>]

The branch 'columnview-scrolling' 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:

  5a666d0... columnview: Revise scroll-minimum handling
  55b4ad5... columnview: Implement horizontal scrolling

Commits added to the branch:

  c6c8263... columnview: Add column reordering (*)
  e195341... gtk-demo: Flesh out the settings demo (*)
  382153e... gtk-demo: Fix keynav in the puzzle (*)
  cc87816... gtk-demo: Fix a crash in the puzzle (*)
  7910596... Remove position from GdkScrollEvent (*)
  0b9a3fc... Merge branch 'ebassi/scroll-position' into 'master' (*)
  8dfbef5... Merge branch 'matthiasc/for-master' into 'master' (*)
  8439992... print backend: Fix list model handling in dispose (*)
  fd51444... columnview: Revise scroll-minimum handling
  b1ab5e1... columnview: Implement horizontal scrolling

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