When getting only the modified fields from the logs, it may be useful to differentiate between the fields that are initialized to null by the survey from those with actual values, either from the participant himself or the conditionals. So we add a initializedFields column to the csv file with the names of the fields that are set to null in a log entry.
Also, change the exported file name to include the date, as well as the parameters with which it was created.
fixes #738
When getting only the modified fields from the logs, it may be useful to differentiate between the fields that are initialized to
nullby the survey from those with actual values, either from the participant himself or the conditionals. So we add ainitializedFieldscolumn to the csv file with the names of the fields that are set tonullin a log entry.Also, change the exported file name to include the date, as well as the parameters with which it was created.