Made a few small changes
Made a few small changes


Former-commit-id: 3ae3ba8bfbe494f7850467dc4c5aea43a0ddd681
xunzhang/dynet,chunyang-wen/dynet,clab/dynet,shuheik/dynet,shuheik/dynet,shuheik/dynet,clab/dynet,clab/dynet,clab/dynet,xunzhang/dynet,danielhers/dynet,danielhers/dynet,shuheik/dynet,xunzhang/dynet,clab/cnn,danielhers/dynet,clab/cnn,shuheik/dynet,chunyang-wen/dynet,clab/dynet,chunyang-wen/dynet,clab/dynet,danielhers/dynet,danielhers/dynet,shuheik/dynet,clab/cnn,xunzhang/dynet,clab/dynet,chunyang-wen/dynet,shuheik/dynet,danielhers/dynet,danielhers/dynet