FIX Swap DataList code to SS_List
FIX Swap DataList code to SS_List

And remove a reference to a DataList method to rely on the GridField method
instead

kinglozzer/silverstripe-gridfieldextensions,silverstripe-australia/silverstripe-gridfieldextensions,symbiote/silverstripe-gridfieldextensions,dhensby/silverstripe-gridfieldextensions,symbiote/silverstripe-gridfieldextensions,silverstripe-australia/silverstripe-gridfieldextensions,dhensby/silverstripe-gridfieldextensions,kinglozzer/silverstripe-gridfieldextensions