minibatch variant of rnnlm example
minibatch variant of rnnlm example


Former-commit-id: fa231712b68f35309e58d8e7f2691952c9aaceb6
clab/dynet,clab/dynet,danielhers/dynet,shuheik/dynet,shuheik/dynet,clab/dynet,clab/dynet,clab/cnn,shuheik/dynet,xunzhang/dynet,clab/dynet,xunzhang/dynet,xunzhang/dynet,shuheik/dynet,danielhers/dynet,danielhers/dynet,danielhers/dynet,shuheik/dynet,danielhers/dynet,shuheik/dynet,clab/dynet,clab/cnn,chunyang-wen/dynet,danielhers/dynet,danielhers/dynet,chunyang-wen/dynet,shuheik/dynet,chunyang-wen/dynet,chunyang-wen/dynet,xunzhang/dynet,clab/cnn,clab/dynet