Digitizer code needs to use DataPointRecorder, not deprecated DataPointRecorderNew
Darrelle gets a runtime exception often when using http://emfisis.physics.uiowa.edu/team/jy/digitizer_zxc.jy, which is caused by some strange code in DataPointRecorderNew. I don't want to figure out the problem there, and the code should be migrated to use DataPointRecorder. I believe DataPointRecorderNew, which was the old code refactored to use QDataSet, has been deprecated, and DataPointRecorder is the mature code. This code may also show the problem, but then the problem can be more easily resolved.