[gtk] (3 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:

  23c1f07... Add line width in the curve demo
  8bb8b4e... Fix a case of left/right confusion
  dc0e52d... Fix those darn Z segments

Commits added to the branch:

  5878f14... Add line width in the curve demo
  4f8d4f7... Fix a case of left/right confusion
  9b8cec8... Fix those darn Z segments