[gtk+] (12 commits) Non-fast-forward update to branch wip/cosimoc/range-gadget

[Cosimo Cecchi <cosimoc src gnome org>]

The branch 'wip/cosimoc/range-gadget' 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:

  e8112f6... range: first pass at porting to gadgets
  408c498... range: deprecate trough-under-steppers
  a831bf4... range: use newer GtkCssGadget API
  9ed6d90... range: deprecate arrow-scaling style property
  f47fc9e... range: don't call gtk_range_calc_layout() in realize()
  5760546... range: simplify code a bit
  4283b52... range: remove call that is not needed
  ae0d6a6... range: remove unused code
  8e66496... gadget: add hit test functions
  b84e7ba... range: continue porting to GtkGadgets
  1d9e41f... range: deprecate more style properties
  4d03bbe... scale: deprecate slider-length style property
  b45309d... wip

Commits added to the branch:

  273bbae... range: first pass at porting to gadgets
  d189f33... range: deprecate trough-under-steppers
  28b1377... range: use newer GtkCssGadget API
  5723cf9... range: deprecate arrow-scaling style property
  f1d944a... range: don't call gtk_range_calc_layout() in realize()
  dbeff0d... range: simplify code a bit
  d27aa87... range: remove call that is not needed
  23729fa... range: remove unused code
  f6910d0... gadget: add hit test functions
  4abfdac... range: continue porting to GtkGadgets
  406d5ce... range: deprecate more style properties
  44fa33b... scale: deprecate slider-length style property