Closes #11

LGTM given by: @

Squashed commit of the following:

commit d1cfa441b5d125724aae827b525a5764e431b59a
Author: Jorn van de Beek <jornvandebeek@gmail.com>
Date:   Fri Oct 24 14:29:27 2014 +0200

    Add documentation for responses start_at