added wmt13/wmt14 unrestricted data

added wmt unrestricted data

added wmt14 en-fr both_green data

added wmt14 en-fr all data

added wmt14 en-fr all data

removed empty line in splits

added wmt13 en-es all data

added adversarial sentences data

added adversarial data

added challenge support + data

added both_green dataset

added all dataset

remove old datasets

refactored loading code + added sentence, pos tags and lemmas to data

updated dataset to have polysemous information as well

using bz2 for faster download

working now?

added data