Check cwise multiply batch dims (#944)
Check cwise multiply batch dims (#944)



Former-commit-id: 8a5d091af12389b473f64de61d79718418164b5e
xunzhang/dynet,clab/cnn,chunyang-wen/dynet,chunyang-wen/dynet,shuheik/dynet,clab/dynet,chunyang-wen/dynet,xunzhang/dynet,clab/dynet,danielhers/dynet,shuheik/dynet,shuheik/dynet,clab/dynet,danielhers/dynet,shuheik/dynet,danielhers/dynet,danielhers/dynet,danielhers/dynet,shuheik/dynet,clab/dynet,xunzhang/dynet,clab/dynet,clab/cnn,shuheik/dynet,clab/dynet,shuheik/dynet,chunyang-wen/dynet,danielhers/dynet,xunzhang/dynet,clab/dynet,danielhers/dynet,clab/cnn