* #7 metrics added

* setup.cfg changed a bit

* added a cps metric

* fix tests for cps

* fix tests for cps

* fix tests for cps

* fix tests for cps

* v2.1

* travis - don't use python 2.7

* fix not to use six

* NoReturn removed

* doc fix

* ported configuration section from metapod

* can load config schema from a dict now

* .convert() -> .__call__