travis mac (#38)
travis mac (#38)

* chomo

* try mac options

ZihengJiang/nnvm,imai-lm/nnvm,piiswrong/nnvm,jermainewang/nnvm,ZihengJiang/nnvm,piiswrong/nnvm,jermainewang/nnvm,jermainewang/nnvm,ZihengJiang/nnvm,imai-lm/nnvm,piiswrong/nnvm,imai-lm/nnvm