Exclude rankings for those at the Elo floor.

Exclude rankings for those at the Elo floor.

Those with an Elo value of 100 (the floor) will no longer be ranked.
Additionally, there will no longer be shared ranks. If two players happen to
have the exact same Elo value (unlikely), the player whose Elo record was
created first will be given the higher rank. This rewards players who have
stuck around for a long time, should they tie with someone else who hasn't been
around as long.