try to make travis happy
try to make travis happy

cr-marcstevens/fplll,dstehle/fplll,shi-bai/fplll,cr-marcstevens/fplll,dstehle/fplll,dstehle/fplll,fplll/fplll,fplll/fplll,cr-marcstevens/fplll,fplll/fplll,fplll/fplll,cr-marcstevens/fplll,shi-bai/fplll,shi-bai/fplll,fplll/fplll,shi-bai/fplll