[gtk] (24 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:

  cad50f4... columnview: Revise scroll-minimum handling
  1670414... columnview: Implement horizontal scrolling

Commits added to the branch:

  c5829bd... fallback-c89: Try to make isnanf work (*)
  43e5ca9... docs: Fix annotations (*)
  c3a90b7... Add missing separator (*)
  1a47239... Fix annotations for gtk_cclosure_expression_new() (*)
  b9269d5... Annotate the GtkFunctionListItemFactory constructor (*)
  4877bb5... columnviewcolumn: Add a visible property (*)
  2d5cf2b... Drop fallback-c89.c (*)
  55b9aa0... Merge branch 'ebassi/annotations' into 'master' (*)
  1c389b1... gtk-demo: Add more scrolling benchmarks (*)
  a026677... printbackend: Use a list store (*)
  fb587cb... printbackend: Add a list model getter (*)
  06dc357... printer: Fix the default value of icon-name (*)
  8780f50... gtk-demo: Some fixes to awards (*)
  8e0ba37... gtk-demo: Fixes for the sliding puzzle (*)
  73fdb8f... Drop GtkCoverFlow for now (*)
  173e919... Merge branch 'matthiasc/for-master' into 'master' (*)
  cbe81fd... Merge branch 'drop-fallback-c89' into 'master' (*)
  06946c3... Update Ukrainian translation (*)
  931d68b... Merge branch 'drop-coverflow' into 'master' (*)
  f5cc2c0... Merge branch 'column-visible' into 'master' (*)
  83c0937... testsuite: Beef up action tests
  c6dec11... More action tests
  f54f01f... columnview: Revise scroll-minimum handling
  1bdccbe... columnview: Implement horizontal scrolling

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