Move httpd restart to DNS installation
    
    Web service needs restarting after bindinstance is created
    to pick up changes done to /etc/resolv.conf. This change should
    be included anytime DNS is installed therefore it makes sense
    to move it to the common code.
    
    https://fedorahosted.org/freeipa/ticket/6392
    
    Reviewed-By: Martin Basti <mbasti@redhat.com>
    Reviewed-By: Jan Cholasta <jcholast@redhat.com>