[gtk] (9 commits) Non-fast-forward update to branch dotted-lines

[Matthias Clasen <matthiasc src gnome org>]

The branch 'dotted-lines' 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:

  b8d9303... Add missing overline color support
  bdca6c3... Implement dashed and dotted underlines

Commits added to the branch:

  53e7593... ngl: Add sonme comments (*)
  94f0a4e... ngl: Be explicit about offscreen clipping (*)
  f9457af... ngl: Fix offscreen rendering with transforms (*)
  6f62107... testsuite: Rename next to ngl (*)
  b5df129... gsk: Add another test (*)
  8713aa9... Add missing overline color support
  68ab157... atspipango: Quiet compiler warnings
  3973a14... cellrenderertext: Quiet compiler warnings
  e74e776... Implement dashed and dotted underlines

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