Added `unique` option to Annotation.get_labels()
PEP8
pyannote.metric.identification rewriting
Fixes a bug happening when both ref and hyp label lists are empty
PEP8 + **kwargs support
New --no-anonymous option for Identification[ErrorRate|Precision|Recall] metrics
PEP8
PEP8
Added Annotation.label_chart() method
Error analysis update! Regression test!