Bug in tools/ensemble.py/get_labels

[dyukha]

The function returns label_ids. However, when print_name in ['sst-5', 'mr', 'cr', 'mpqa', 'subj', 'trec'], label_ids is not defined. I guess there should be return labels in this branch?

[gaotianyu1350]

Thanks for reporting this! The bug has been fixed.