TST Add benchmarking script for multilabel metrics
Fix exception message when cloning a estimator that does not implement 'get_params' method.
Merge pull request #2647 from trein/patch-1

Fix exception message when cloning an estimator
COSMIT in response to feedback
Merge pull request #2643 from jnothman/bench_mutilabel_metrics

[MRG] Add benchmarking script for multilabel metrics
ENH: Raise explicitly on non-unique vocab.