testBetterHistory

[elcabesa]

try using a low pass filter on quiet history

• [x] implement code
• [x] test 6+0.1
• [x] test 60+0.6

6+0.1 Elo difference: 5.04 +/- 2.43 60+06 Elo difference: 6.47 +/- 3.26

[elcabesa]

• [x] Remember to remove max variable