[gtk+] (11 commits) Non-fast-forward update to branch wip/baedert/gl

[Timm Bäder <baedert src gnome org>]

The branch 'wip/baedert/gl' 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:

  d085856... gl renderer: draw all outset shadows
  0cbf37b... gl renderer: Only draw what we have to
  6676350... gl renderer: Remove some unused uniforms from shader
  79d2b54... gl renderer: Remove unused parameter
  2923fdf... gl driver: Remove vao API
  00818df... gl driver: Only support one fbo per texture
  9c8154a... gl driver: Remove dead warning code
  a547944... gl driver: Remove gl-context property
  1f4f3b2... gl renderer: Properly delete all shader programs

Commits added to the branch:

  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