[gtk] (7 commits) Non-fast-forward update to branch wip/otte/glcontext

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/glcontext' 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:

  07b6a7b... glcontext: Add GdkGLContext::allowed-apis
  dee31e4... glcontext: Deprecate gdk_gl_context_set_use_es()
  065095b... gl: Check allowed APIs in realize()
  3527798... glcontext: Add gdk_gl_context_get_api()
  b4b718c... ngl: fbo 0 has no color attachment
  9237ee7... ngl: Compute correct renderformat

Commits added to the branch:

  4f53645... ngl: fbo 0 has no color attachment
  3b9967d... ngl: Compute correct renderformat
  76420d7... ngl: Fix glTexImage2D() usage on GLES
  c6dd3c1... glcontext: Add GdkGLContext::allowed-apis
  8c1f7f7... glcontext: Deprecate gdk_gl_context_set_use_es()
  f584d4f... gl: Check allowed APIs in realize()
  e974a04... glcontext: Add gdk_gl_context_get_api()