Lower autoconf dependency to 2.68 again
Lower autoconf dependency to 2.68 again

sfeltman/pygobject,pexip/pygobject,GNOME/pygobject,davibe/pygobject,sfeltman/pygobject,davibe/pygobject,pexip/pygobject,pexip/pygobject,GNOME/pygobject,davibe/pygobject,sfeltman/pygobject,GNOME/pygobject,davibe/pygobject