[EM] Hay voting simulated in IEVS

[Warren Smith]

Hay voting (a version of it anyhow, using sqrts) is
now available in IEVS 2.53
   http://rangevoting.org/IEVS/IEVS.c
and tests indicate that it indeed seems to be one of the worst voting methods
in trms of Bayesian Regret.  It seems ot usually be worse than RandomBallot
but better than RandomWinner.
wds