Raise the epoch to 1.
    
    Prior to cornice-3.0.0, the sphinx extension was included with
    cornice and was packaged as python2-cornice-sphinx and
    python3-cornice-sphinx in Fedora (verion 1.x). When cornice 3 was
    released upstream, they decided to split cornice and cornice_sphinx
    into two different packages. They also reset the version of
    cornice_sphinx back to 0.x (currently 0.3). This causes a problem
    for upgrading systems, since they will want to keep the
    cornice-sphinx-1.x package which also requires an identical version
    of cornice.
    
    We can solve this problem by raising the epoch to 1.
    
    Signed-off-by: Randy Barlow <randy@electronsweatshop.com>