BUGFIX $date is not set on SilverStripeNavigatorItem_ArchiveLink
BUGFIX $date is not set on SilverStripeNavigatorItem_ArchiveLink

This bug was introduced from a bad merge

dhensby/silverstripe-cms,silverstripe/silverstripe-cms,helpfulrobot/i-lateral-silverstripe-siteconfig,silverstripe-labs/silverstripe-reports,dhensby/silverstripe-reports,dhensby/silverstripe-reports,dhensby/silverstripe-cms,silverstripe-labs/silverstripe-reports,silverstripe/silverstripe-cms,silverstripe/silverstripe-siteconfig,dhensby/silverstripe-cms,jonom/silverstripe-cms,jonom/silverstripe-cms