- Added a --skipDelete option to upgrade.pl

- rfe: Approvers don't need to approve own changes
fixed a rare bug that could occur in archiving old threads

lib/WebGUI/Workflow/Activity/ArchiveOldThreads.pm

@@ -73,6 +73,7 @@ sub execute {
         my $a = $self->session->db->read("select assetId from asset where className='WebGUI::Asset::Wobject::Collaboration'");
         while (my ($assetId) = $a->array) {
                 my $cs = WebGUI::Asset->new($self->session, $assetId, "WebGUI::Asset::Wobject::Collaboration");
+		next unless defined $cs;
                 my $archiveDate = $epoch - $cs->get("archiveAfter");
                 my $sql = "select asset.assetId, assetData.revisionDate from Post left join asset on asset.assetId=Post.assetId 
                         left join assetData on Post.assetId=assetData.assetId and Post.revisionDate=assetData.revisionDate