removed useage of retype_index_cols() and added an "Upgrade complete" message at end, because there is some weird problem emmitting C memory problems at script exit now
removed useage of retype_index_cols() and added an "Upgrade complete" message at end, because there is some weird problem emmitting C memory problems at script exit now

wtsi-hgi/vr-pipe,wtsi-hgi/vr-pipe