Merge branch 'master' of https://gitlab.cl.uni-heidelberg.de/kotzaneck/irl-machine-translation-project
pull to cluster

Merge branch 'master' of https://gitlab.cl.uni-heidelberg.de/kotzaneck/irl-machine-translation-project

merge of cluster repo and local

I noticed some version compatibility issues when trying to install joeyNMT in a new enviroment with the currently specified requirements. 

Changed torch version requirement to ==1.6.0 in requirements.txt since it seems the most stable for the current joeyNMT build

Fixing lint

fix pack_padded_sequence()

Hi!
It seems like for pytorch 1.7.0, pack_padded_sequence's src_length  must be in cpu, even if we're using cuda: https://github.com/pytorch/pytorch/issues/43227

I also tried this command in pytorch 1.6.0 to check for backward compatibility and there it works fine, both with and without adding .cpu()

fix typo

Multi gpu

Add a link to the Contributors graph in the README

remove tensorflow, only keep tensorboard