modified:   hunvec/layers/hs.py
fixed perplexity (is it good?)
modified:   hunvec/nnlm/nnlm.py
write vectors at every batch
modified:   hunvec/nnlm/predict_nnlm.py
lot of fixes to follow recent changes
Merge branch 'nnlm' of github.com:zseder/hunvec into nnlm