[gtk] (47 commits) Non-fast-forward update to branch cube-spin

[Matthias Clasen <matthiasc src gnome org>]

The branch 'cube-spin' 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:

  76d6f1c... stack: Add a cube spin transition

Commits added to the branch:

  6b08227... meson.build: Pull in fallback for PangoFT2 only when needed (*)
  4784c5a... gdk/win32/gdkdrag-win32.c: Include math.h (*)
  42d580d... reftests: Remove image-recording-surface test (*)
  c564a34... testsuite: Make reftests work again (*)
  0c81ea2... reftests: Make meson run every test separately (*)
  d3be32f... reftest: Be more careful about snapshotting (*)
  5dd5ff5... widgetpaintable: Don't emit signals on dispose (*)
  e3dbf8d... reftests: Fix unresolvable.ui test (*)
  b3eddbb... reftests: Fix grid-spacing1 test (*)
  8542ac2... reftests: Fix window-height-for-width test (*)
  7cc5e51... reftests: Fix actionbar test (*)
  7935f9d... reftests: Actually build a module (*)
  d517552... reftests: Fix treeview-fixed-height test (*)
  62d0bd7... reftests: Fix nth-child test (*)
  8846f28... reftests: Fix background-size-zero test (*)
  5ddce32... reftests: Fix css-match-class test (*)
  47d4b06... reftests: Fix css-currentcolor-alpha.ui test (*)
  2e67c2e... reftests: Delete removed tests from testdata (*)
  d4df521... reftests: Fix border-image-excess-size.ui test (*)
  6d38f1d... reftests: Fix css-match-type test (*)
  e612b55... reftests: Fix css-match-name test (*)
  f3e47ee... reftests: Fix icon-style-basics test (*)
  f070872... reftests: Fix notebook-tab-position test (*)
  822791d... reftests: Remove info-bar-message-types test (*)
  c04190e... rendernode: Round pixel colors in color matrix drawing (*)
  4b07d28... textlayout: Allow querying empty areas (*)
  9ca5495... reftests: Fix inherit-and-initial test (*)
  38fbb68... headerbar: Duct-tape over the measure mess (*)
  3c44f83... Fix textview-margins reftest (*)
  d10a73f... textview: Paint border windows in the right spot (*)
  866bc13... reftests: Fix statusbar-remove-all test (*)
  3a8a9fc... reftests: Remove style-properties-nth-child test (*)
  fee8f6b... reftests: Fix shorthand-entry-border test (*)
  b21882b... cssimagelinear: Make gradient offsets stay in [0, 1] (*)
  606aea2... reftests: Fix iconview-empty test (*)
  bf2a93c... reftests: Fix image-load-from-file test (*)
  7918eaf... picture: Don't cause warnings on load failures (*)
  e861b0d... reftests: Fix grid-spacing2 test (*)
  fbc8bb9... reftests: Fix grid-empty-with-spacing test (*)
  95f9c8a... reftests: Remove box-packing test (*)
  b88c943... reftests: Fix label-sizing test (*)
  e5e5164... reftests: Fix textview-tags test (*)
  90f460c... reftests: Remove notebook-childproperties test (*)
  a8dccef... build: The private reftest library needs to be shared (*)
  1944ffe... Revert "Bump meson req to 0.50" (*)
  ec9be21... Update Swedish translation (*)
  9d0a42d... stack: Add a cube spin transition

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