Made a fix to the xml saving.

                row = sim.RowType()

                for a in lsctables.SimBurstTable.validcolumns.keys():

                    setattr(row, a, self.params[a])

                    setattr(row, a, waveform.params[a])

                waveform.waveform = self.waveform

                row.waveform = waveform.waveform

                # Fill in the time

                row.set_time_geocent(GPS(float(waveform.time)))

                # Get the sky locations