Add print-continuity to be saved with file. #34
Description
Right now there is the continuity that describes the way the points move, and the Print Continuity, the continuity that gets printed with the show. The user has to add the print continuity to the file before the print, and it doesn't get saved with the file.
We should add the print continuity directly to the document. We don't need to make sure it is correct, but it should be saved with the file so that it stays with the show in case somebody wants to reprint the file with the continuity.