[gtk] (12 commits) Non-fast-forward update to branch wip/otte/gleanup

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/gleanup' 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:

  26c8f09... x11: Move code where it belongs
  ed0d6e5... x11: Remove unused function
  42a5019... x11: Stop reordering visuals
  2c3c042... x11: Reorder code

Commits added to the branch:

  159c8bd... build: Build demos before tools
  38d4780... x11: Move code where it belongs
  40d0d7a... x11: Remove unused function
  c0bbe14... x11: Stop reordering visuals
  34f8904... x11: Reorder code
  7c032da... x11: Don't share cached GLX visuals with GTK3
  7ce3e93... x11: Initialize GL at startup
  21dfb0e... glx: Don't initialize GLX multiple times.
  9a51a89... x11: Move function call
  7140125... x11: Simplify code
  1469410... x11: Pass the display, not the screen
  34b8eef... x11: Move the EGL display into the private struct