add change from Sara to return if a cert conversion or add to store fails
add change from Sara to return if a cert conversion or add to store fails

shane-kerr/getdns,huitema/getdns,shane-kerr/getdns,huitema/getdns,huitema/getdns,shane-kerr/getdns,shane-kerr/getdns,huitema/getdns