[gtk+] (9 commits) Non-fast-forward update to branch wip/pango-shadow-cache

[Jasper St. Pierre <jstpierre src gnome org>]

The branch 'wip/pango-shadow-cache' 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:

  4012b92... cssshadowvalue: Fix whitespace
  e6b2cbc... cssshadowvalue: draw_shadow / start_drawing
  795a2d3... move color / offset
  639a4d3... needs blur
  6722379... pango shadow cache

Commits added to the branch:

  e014b89... Move gtkthemingengine to deprecated directory (*)
  f505fc5... Updated POTFILES.in (*)
  a8b57f8... cssshadowvalue: Fix whitespace
  950f0d1... cssshadowvalue: Move parts of start_drawing into draw_shado
  e663a1f... cssshadowvalue: Add a hacky workaround for bugs in SNA
  4d5b1b7... cssshadowvalue: Move applying the color / offset into start
  a6166e0... cssshadowvalue: Move the check for blurring into its own fu
  c8a16c2... cssshadowvalue: Rename shadow_key to original_cr_key
  a74cf52... cssshadowvalue: Add a cache for blurred Pango layouts

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