Bigger error margin for the saxe init test
Bigger error margin for the saxe init test

Former-commit-id: 8bfab81d8ccc48fc77762aeb695a858a770389a0
clab/dynet,danielhers/dynet,clab/cnn,clab/dynet,danielhers/dynet,danielhers/dynet,clab/dynet,chunyang-wen/dynet,clab/dynet,danielhers/dynet,danielhers/dynet,shuheik/dynet,clab/dynet,chunyang-wen/dynet,clab/cnn,xunzhang/dynet,xunzhang/dynet,shuheik/dynet,xunzhang/dynet,chunyang-wen/dynet,chunyang-wen/dynet,danielhers/dynet,shuheik/dynet,xunzhang/dynet,danielhers/dynet,shuheik/dynet,clab/dynet,shuheik/dynet,clab/dynet,clab/cnn,shuheik/dynet,shuheik/dynet