[gtk] (18 commits) Non-fast-forward update to branch path-tests

[Matthias Clasen <matthiasc src gnome org>]

The branch 'path-tests' 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:

  7b7145b... curve: Handle degenerate cases
  0c8deb1... Add gsk_path_stroke
  3ee17ee... Special-case rects for strokes
  a6e4274... Special-case circles for strokes
  11a5921... Implement stroking
  dc6c49b... Add basic tests for strokes
  9fc20c4... Add another stroker test
  e76377a... stroke: Add a forgotten case
  751f70f... Generalize handling of degenerate curves
  7b5fe46... Add an interactive path test
  f22828a... Add a path editor demo
  e195a20... xxx: Make gsk_stroke_to_cairo public
  85effe4... curve2: Add a way to compare to cairo

Commits added to the branch:

  8b24dd9... curve: Handle degenerate cases (*)
  c564d5a... Add a test for tangents of degenerate curves (*)
  27972af... Add a test for gsk_curve_reverse (*)
  7c6ea60... Add a test for gsk_curve_offset (*)
  fbb78f1... Add gsk_path_stroke (*)
  d4a6de8... Special-case rects for strokes (*)
  726209c... Special-case circles for strokes (*)
  885edae... Implement stroking (*)
  e284fb5... Add basic tests for strokes (*)
  ca973e3... Add another stroker test (*)
  570eb39... stroke: Add a forgotten case (*)
  c58e9d2... Generalize handling of degenerate curves (*)
  6a79234... stroke: Tweak the way we do smooth joins (*)
  e4acc29... Add an interactive path test
  16b376e... Add a path editor demo
  398488c... xxx: Make gsk_stroke_to_cairo public
  63dadf8... curve2: Add a way to compare to cairo
  edc4ab9... curve2: Add a zoom slider

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