[gtk+] (26 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:

  25c0ae7... gadget: add hit test functions
  983de6b... range: continue porting to GtkGadgets
  69e807f... range: deprecate more style properties
  dd26b36... scale: deprecate slider-length style property
  84d94a1... range: move slider inside the trough
  b5ba08e... range: remove special case that's not needed
  d93d266... range: move GtkColorScale special case to GtkColorScale
  a74f7dc... range: simplify code
  f534675... Revert "range: simplify code"
  5645fff... Revert "range: move GtkColorScale special case to GtkColorS
  88b8796... colorscale: don't use style properties to determine slider 
  3daf410... range: remove border allocation hack
  01758ff... range: whitespace fix
  ba442bd... scrollbar: deprecate min-slider-length style property
  7e5d1f9... range: move slider drawing where it belongs
  c8a6b52... boxgadget: add API to set expand/align flags for gadget chi
  64ed729... range: use new GtkBoxGadget API instead of removing/inserti
  f5b6720... boxgadget: add APIs to insert gadgets next to siblings
  2b6a805... range: use new GtkBoxGadget API instead of counting childre
  52720d5... scale: always add marks at the beginning or the end
  9584f90... range: add a gadget for the whole widget area
  72982b5... Adwaita: WIP for new range theme
  ca3062c... range: simplify code

Commits added to the branch:

  0fbda1e... gadget: add hit test functions
  9cb7e44... range: continue porting to GtkGadgets
  6027e9b... range: deprecate more style properties
  3f53abd... scale: deprecate slider-length style property
  f512a59... range: move slider inside the trough
  0871de9... range: remove special case that's not needed
  9355241... range: move GtkColorScale special case to GtkColorScale
  93c651b... range: simplify code
  ea9c5f0... Revert "range: simplify code"
  b439e5e... Revert "range: move GtkColorScale special case to GtkColorS
  3a84b20... colorscale: don't use style properties to determine slider 
  65feccd... range: remove border allocation hack
  6dd704b... range: whitespace fix
  42da216... scrollbar: deprecate min-slider-length style property
  9f0173e... range: move slider drawing where it belongs
  0c8d87e... boxgadget: add API to set expand/align flags for gadget chi
  30e60a3... range: use new GtkBoxGadget API instead of removing/inserti
  fdbd620... boxgadget: add APIs to insert gadgets next to siblings
  a1bd8ed... range: use new GtkBoxGadget API instead of counting childre
  195093b... scale: always add marks at the beginning or the end
  7009296... range: add a gadget for the whole widget area
  670b091... Adwaita: WIP for new range theme
  67857c1... range: simplify code
  79cb10b... gadget: add API to get various area boxes
  e322f49... range: use new GtkCssGadget API instead of rolling our own
  51ff0ef... range: use border box for slider area