[gtk] (17 commits) Non-fast-forward update to branch ngl-clip-classification

[Matthias Clasen <matthiasc src gnome org>]

The branch 'ngl-clip-classification' 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:

  8fd04e6... ngl: Classify clips
  a8dff29... fixup! ngl: Classify clips

Commits added to the branch:

  4375f8e... ngl: Remove a few redundant checks (*)
  d0dce4c... ngl: Treat radial gradients like others (*)
  5fd22e5... Update Latvian translation (*)
  b2c1d6b... Merge branch 'ngl-misc-fixes' into 'master' (*)
  5807fee... icons: Rename two icons which had the wrong extension (*)
  41371cc... buildable: Remove "class" macro (*)
  0cfe3d4... celleditable: Remove class cast check macro (*)
  6234ccc... orientable: Remove class macros (*)
  70fbfd8... treesortable: Remove class check macro (*)
  676ea48... docs: Remove invalid macros (*)
  83c466d... Merge branch 'scalable-svg' into 'master' (*)
  6e903e1... g-i: add missing since annotations for 4.2 (*)
  87b800c... Merge branch 'bilelmoussaoui/gi-annotations' into 'master' (*)
  b73c9e9... imcontext: Fix a docs mishap (*)
  c60a316... Move gtk_rounded_rect_scale_affine to the right place (*)
  d786e1d... Merge branch 'ebassi/iface-macros' into 'master' (*)
  7ba2d8b... ngl: Classify clips

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