[gtk] (17 commits) Non-fast-forward update to branch wip/matthiasc/lottie-stroke

[Matthias Clasen <matthiasc src gnome org>]

The branch 'wip/matthiasc/lottie-stroke' 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:

  16ac120... Fix a compiler warning
  58d84d4... Add an interactive path test
  9fa898c... Add a path editor demo
  c9bcf61... Add gsk_path_to_stroke
  baae039... Add an interactive test for stroking
  76e660f... Make stroke nodes use path-to-stroke
  d02058a... stroke: Add minimal support for conics
  642cbc4... Add code to split conics
  1c1366b... Add some more conic math
  d4985aa... wip: reorganize intersection code
  5d34cf1... wip: Support conics in the stroker
  4ba8219... curve-editor: Rewrite with conics support
  e76c11e... Add a testcase

Commits added to the branch:

  cf2e717... path: Introduce gskpathop (*)
  89c021d... Fix a compiler warning
  0df7fcd... Add an interactive path test
  ded2959... Add a path editor demo
  1213035... Add gsk_path_to_stroke
  b422807... Add an interactive test for stroking
  42384dd... Make stroke nodes use path-to-stroke
  c0b888e... Revert "Make stroke nodes use path-to-stroke"
  0e71cb1... stroke: Add minimal support for conics
  2fb803e... Add code to split conics
  c7355e3... Add some more conic math
  893239e... wip: reorganize intersection code
  6428dfe... wip: Support conics in the stroker
  9c68cd9... curve-editor: Rewrite with conics support
  fd7a77b... Fix get_closest_point for rectangles
  40f04cb... Add a vfunc for per-contour stroking
  e576aae... Special-case rects for strokes

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