[gtk] (27 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:

  5153de7... build: Build demos before tools
  5de33a8... x11: Move code where it belongs
  fcca211... x11: Remove unused function
  0ca8a71... x11: Stop reordering visuals
  3626d92... x11: Reorder code
  52784ed... x11: Don't share cached GLX visuals with GTK3
  4a2da87... x11: Initialize GL at startup
  fe9d901... glx: Don't initialize GLX multiple times.
  0847e2c... x11: Move function call
  4c16493... x11: Simplify code
  bd2ca15... x11: Pass the display, not the screen
  1d6026d... x11: Move the EGL display into the private struct
  cf06433... x11: Store the EGL config in the display
  16957ae... x11: Store the EGL surface in the GdkSurfaceX11
  6670ba2... x11: Move GL init code into the GL context
  1e61b5b... glx: Remove Visual cache
  025932d... x11: Rework Visual selection
  888d8dd... x11: Remove GdkVisual

Commits added to the branch:

  e6c4dbf... spinner: Behave like any other icon (*)
  6c7c560... build: Build demos before tools
  1266da2... x11: Move code where it belongs
  031ddaa... x11: Remove unused function
  6d4d5a8... x11: Stop reordering visuals
  219e1d0... x11: Reorder code
  1b93c57... x11: Don't share cached GLX visuals with GTK3
  919c15d... x11: Initialize GL at startup
  d159772... glx: Don't initialize GLX multiple times.
  af63969... x11: Move function call
  baa8090... x11: Simplify code
  d3bc728... x11: Pass the display, not the screen
  ed34359... x11: Move the EGL display into the private struct
  7ce5f6e... x11: Store the EGL config in the display
  778f909... x11: Store the EGL surface in the GdkSurfaceX11
  3f7ff84... x11: Move GL init code into the GL context
  1ea260c... glx: Remove Visual cache
  a8ae195... x11: Rework Visual selection
  9415ec6... x11: Remove GdkVisual
  2a89c27... x11: Remove the dummy surface
  7b584f1... Revert "x11: Always fall back to GLX on NVIDIA"
  11a2ac7... egl: Get Visual from EGL (XXX DOES NOT WORK XXX)
  ec38fe6... x11: Remove unused struct member
  5493c06... x11: Remove glx version check
  2ddb278... x11: Use single GLX fbconfig and store it in the display
  a8e444e... x11: Store the GLX drawable in the surface
  6371047... gdk: Add gdk_gl_context_is_compatible()

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