[gtk+] (58 commits) Non-fast-forward update to branch wip/matthiasc/font-variations

[Matthias Clasen <matthiasc src gnome org>]

The branch 'wip/matthiasc/font-variations' 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:

  b5bd432... Some initial support for font variations
  8a4d53e... Add a font variations demo
  e141b47... Implement font-variation-settings
  ac6233b... font button: Take variations into account
  4fde546... css: Document font-variation-settings
  a492920... font chooser: Small revision of the UI
  c4fed18... font chooser: introduce font chooser levels
  aae6a37... font button: Remove show-font and show-size
  99c42dd... font chooser: Add language/script filtering
  c10b1f4... font chooser: Add a monospace filter
  a9de07b... gtk-demo: Revise the font features demo
  60489d0... gtk-demo Populate scripts/langs for font features
  9953f4e... wip: add font features in the font chooser
  9dfae82... font chooser: Add a tweak page
  8e40232... font chooser: Don't reset features too eagerly
  515f66e... font chooser: Avoid selection in entries
  1d0225e... font chooser: Move font variations to the tweaks
  feb4e3d... font chooser: Hide the language combo when unneeded
  541b998... font chooser: Add properties for features and language
  413ae5b... gtk-demo: update features and language

Commits added to the branch:

  006f2e3... testheaderbar: Fix custom CSS (*)
  8312ee0... testsuite: Add selected gl renderer test node files (*)
  3158b48... testoutsetshadowdrawing: Add adwaita CSD window test case (*)
  a720a63... gl renderer: Insert render target op in render_texture path (*)
  a61eecc... snapshot: Don't create clip nodes with 0 width or height (*)
  9675b8a... showrendernode: Add some advanced options (*)
  9f26740... gl renderer: Properly flip texture in render_texture path (*)
  e1c1206... tests: Fix the unblurred gl renderer output images (*)
  767df91... testsuite: Move gl renderer nodes files into their own dire (*)
  c4d5225... testoutsetshadowdrawing: Add more samples (*)
  2bc10fa... gl renderer: draw all outset shadows (*)
  aeaab55... gl renderer: Only draw what we have to (*)
  4abbf92... gl renderer: Remove some unused uniforms from shader (*)
  825608a... gl renderer: Remove unused parameter (*)
  352590c... gl driver: Remove vao API (*)
  c9656e2... gl driver: Only support one fbo per texture (*)
  1cbd4d2... gl driver: Remove dead warning code (*)
  d2d18f7... gl driver: Remove gl-context property (*)
  e0436b3... gl renderer: Properly delete all shader programs (*)
  6587864... gl driver: Remove more unused API (*)
  86a6131... build: Rename a variable (*)
  f92cca5... gl renderer: Fix release build (*)
  c1573a1... window: Avoid a set-but-not-used warning (*)
  73d6076... css docs: Fix some angle brackets for percentage (*)
  3c7c4a0... css docs: Get rid of non-breaking spaces (*)
  98a28f4... css docs: Get rid of non-breaking hyphens (*)
  ccf3b10... css docs: Ensure the first column does not break for every  (*)
  b3871a7... css docs: Fix refentry and refname (*)
  b42fc41... css docs: Fix duplicate border‑right‑width (*)
  ea55471... css docs: swap border-width and border-left shorthands, to  (*)
  c1ce599... css docs: remove useless <para> (*)
  ed5f07e... css docs: fix some formatting inconsistencies along the way (*)
  25523e6... gtk: remove non-breaking space, probably there by mistake (*)
  9c1207e... Update new css docs for new nowrap handling (*)
  7d659b2... Drop deprecated text view layers (*)
  85c9ffe... Some initial support for font variations
  7b971cc... Add a font variations demo
  aca6551... Implement font-variation-settings
  81a3c60... font button: Take variations into account
  2fe1e42... css: Document font-variation-settings
  2141ef1... font chooser: Small revision of the UI
  9a3e8b7... font chooser: introduce font chooser levels
  3903ef5... font button: Remove show-font and show-size
  a13eddb... font chooser: Add language/script filtering
  01cf2c2... font chooser: Add a monospace filter
  829af31... gtk-demo: Revise the font features demo
  b79634b... gtk-demo Populate scripts/langs for font features
  fdfdffa... wip: add font features in the font chooser
  5d339cc... font chooser: Add a tweak page
  cdf5b3e... font chooser: Don't reset features too eagerly
  e34d618... font chooser: Avoid selection in entries
  1b056f7... font chooser: Move font variations to the tweaks
  fd4a937... font chooser: Hide the language combo when unneeded
  5e151f0... font chooser: Add properties for features and language
  262783d... gtk-demo: update features and language
  5f854b2... font chooser: Redo the tweaks hookup
  db84e8c... font chooser: Add scale marks on both size sliders
  8df9fa9... font chooser: Show the font name on the tweak page

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