[gtk] (7 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:

  d593e5b... Add an interactive path test
  a2f9316... Add a path editor demo
  bb1d1bf... xxx: Make gsk_stroke_to_cairo public
  e56668e... curve2: Add a way to compare to cairo
  34f7097... curve2: Add a zoom slider
  c365c21... Add gsk_path_measure_get_curvature
  273bc4c... curve2: Show osculating circles

Commits added to the branch:

  9db5398... stroker: Cleanups (*)
  438d6c9... Add gsk_path_offset (*)
  539ab87... Add a path editor demo
  988fb79... xxx: Make gsk_stroke_to_cairo public
  0fb36d5... Add an interactive path test
  5e423e8... Add gsk_path_measure_get_curvature
  0b5af36... curve2: Show osculating circles

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