reverting b2af7eaddfc1de72661b6861115d3fdb97403bf3 because of Revert in torch7 https://github.com/torch/torch7/pull/523
reverting b2af7eaddfc1de72661b6861115d3fdb97403bf3 because of Revert in torch7 https://github.com/torch/torch7/pull/523

joeyhng/nn,elbamos/nn,apaszke/nn,xianjiec/nn,andreaskoepf/nn,sagarwaghmare69/nn,nicholas-leonard/nn,caldweln/nn,jonathantompson/nn,jhjin/nn,kmul00/nn,colesbury/nn,PraveerSINGH/nn,diz-vara/nn,eriche2016/nn