* metrics refactored

* rolled my own frozendict

* tests for py35

* ver bump

* cps sum -> total

* tests for py35

* v2.2.17 - added coding.sequences.choose

* link to GitHub at primary page of docs

* tests for python 3.5 + code reformat

* moved requirements to requirements.txt instead of .travis.yml

* 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__