[python-gunicorn/f21] (3 commits) ...fixed build requirements, added -doc subpackage with HTML docs

[Dan Callaghan]

Summary of changes:

  3fe69b4... upstream release 19.1.1: http://docs.gunicorn.org/en/19.1.1 (*)
  00a1ccf... oops, forgot new-sources (*)
  9cc0a09... fixed build requirements, added -doc subpackage with HTML d (*)

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