Only consider pawns as CTF blockers

Only consider pawns as CTF blockers

kingofthehill STC
LLR: 2.97 (-2.94,2.94) [0.00,10.00]
Total: 10881 W: 4756 L: 4513 D: 1612
http://www.variantfishtest.org:6543/tests/view/5e9dedad6e23db36d55f29fe

kingofthehill LTC
LLR: 2.96 (-2.94,2.94) [0.00,10.00]
Total: 7631 W: 3280 L: 3085 D: 1266
http://www.variantfishtest.org:6543/tests/view/5e9e0ed26e23db36d55f2a08

racingkings STC
LLR: -2.97 (-2.94,2.94) [0.00,10.00]
Total: 6852 W: 2200 L: 2190 D: 2462
http://www.variantfishtest.org:6543/tests/view/5e9dedc86e23db36d55f2a01

racingkings LTC
LLR: -2.98 (-2.94,2.94) [0.00,10.00]
Total: 14921 W: 4163 L: 4063 D: 6695
http://www.variantfishtest.org:6543/tests/view/5e9e0eda6e23db36d55f2a0a