DataPointRecorder manual configuration broken after formatterArray introduced

[jbfaden]

Bill noticed a script using the DataPointRecorder was now broken. It was because some time in the past year or so I'd made it so that the formatters could be individually controlled, and I hadn't considered the case where the script manually configures each column. The array formatters was left null and the code assumed that it would be non-null.

This is fixed, falling back to the old logic when formatters is null.

[jbfaden]

Whoops, save to file needs similar code.