scores_log and linking

Open question, really. Right now, when we link names, we do not update the scores_log table to change the old names to the new name. We do track a score change to note the change in bulk. We could, instead of tracking the bulk change, just update the scores_log table to point from that old name to the new one. This would preserve all that history, but wouldn't let us know a bulk change happened. Do we want to do that?