In participant listing report, status type's label should be used (not names)

the statusType function returns names by default (maybe this should be changed) and result in the following error (others coming soon )

Go to the Report 'Participant Listing' form , the name of the status type (which cannot be changed nor modified) is displayed while the label should be displayed.
Adding the retColumn 'label' argument to the StatusType method solves the problem see attached patch.