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Fixed deprecation message.

shuheik/dynet,clab/dynet,clab/cnn,shuheik/dynet,danielhers/dynet,clab/dynet,danielhers/dynet,shuheik/dynet,clab/dynet,clab/cnn,clab/dynet,clab/dynet,chunyang-wen/dynet,danielhers/dynet,danielhers/dynet,chunyang-wen/dynet,shuheik/dynet,clab/cnn,chunyang-wen/dynet,clab/dynet,danielhers/dynet,clab/dynet,danielhers/dynet,shuheik/dynet,chunyang-wen/dynet,danielhers/dynet,shuheik/dynet,shuheik/dynet