minor bug fix (setMaIntervalNo must be called even when max_ma and min_ma are blank just in case user wants to erase existing values)
minor bug fix (setMaIntervalNo must be called even when max_ma and min_ma are blank just in case user wants to erase existing values)

paleobiodb/pbdb-new,paleobiodb/pbdb-new,paleobiodb/pbdb-new,paleobiodb/pbdb-new,paleobiodb/pbdb-new