[jhbuild] (2 commits) Non-fast-forward update to branch wip/lantw/support-python3-sysdeps-and-fix-gtk-doc-deps

[Ting-Wei Lan <lantw src gnome org>]

The branch 'wip/lantw/support-python3-sysdeps-and-fix-gtk-doc-deps' 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:

  2f5ec9f... configure.ac: Exit early if PYTHON is not Python 2
  d52a011... systeminstall: Support 'python3' sysdeps
  dabb6a7... core-deps-latest: gtk-doc depends on pygments

Commits added to the branch:

  8b090fa... systeminstall: Support 'python3' sysdeps
  8ba5107... core-deps-latest: gtk-doc depends on pygments