[gtk] (22 commits) Non-fast-forward update to branch wip/baedert/for-master

[Timm Bäder <baedert src gnome org>]

The branch 'wip/baedert/for-master' 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:

  0963570... node editor: Make help textview monospace
  81df926... gl renderer: Replace modelview matrix with just scale
  183648b... shader builder: Improve error output
  cc6f868... node editor: Show some default node data

Commits added to the branch:

  d83502d... gskglshaderbuilder: bind correct uv location (*)
  2cd0e5f... Merge branch 'wip/fl/gl-renderer-fixes' into 'master' (*)
  ac0f524... build: Redo the tools build (*)
  2d0d579... Unify border-spacing handling (*)
  10d5705... Reduce use of GtkStyleContext (*)
  1ac9400... Drop unused logo resource (*)
  3cc7d9b... Move the gesture icons in the right place (*)
  38e2f91... Remove vestigial glade support (*)
  98c247e... label: Drop some unused includes (*)
  f5379d2... Merge branch 'matthiasc/for-master' into 'master' (*)
  b005cd0... Update Swedish translation (*)
  0d0bdaa... gsk: Fix a thinko (*)
  da59c77... widget: Use subpixel positioning (*)
  20fb155... gsk: Fix render node serialization (*)
  1635d9f... Merge branch 'pango-glyph-positions' into 'master' (*)
  00956a3... node editor: Make help textview monospace
  8ebcef9... shader builder: Improve error output
  aba14e6... node editor: Show some default node data
  fc99081... showrendernode: Monitor input file
  79f2733... gl renderer: Fix viewport computation when rendering offscr
  48fd121... gl renderer: Replace modelview matrix with just scale
  cca78b8... Revert "gl renderer: Replace modelview matrix with just sca

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