Merge branch 'master' into e2e-soloist

.gitignore

convlab/dialog_agent/agent.py

convlab/dialog_agent/env.py

convlab/dst/evaluate_unified_datasets.py

convlab/dst/setsumbt/__init__.py

convlab/dst/setsumbt/calibration_plots.py

convlab/dst/setsumbt/configs/setsumbt_multitask.json

convlab/dst/setsumbt/configs/setsumbt_multiwoz21.json

convlab/dst/setsumbt/configs/setsumbt_pretrain.json

convlab/dst/setsumbt/configs/setsumbt_sgd.json

convlab/dst/setsumbt/configs/setsumbt_tm.json

convlab/dst/setsumbt/dataset/__init__.py

convlab/dst/setsumbt/dataset/ontology.py

convlab/dst/setsumbt/dataset/unified_format.py

convlab/dst/setsumbt/dataset/utils.py

convlab/dst/setsumbt/dataset/value_maps.py

convlab/dst/setsumbt/distillation_setup.py

convlab/dst/setsumbt/do/calibration.py

convlab/dst/setsumbt/do/evaluate.py

convlab/dst/setsumbt/do/nbt.py