Opvious

What's Changed
* Introduce problem abstraction by mtth in https://github.com/opvious/sdk.py/pull/103
* Add import notebook allow empty option by mtth in https://github.com/opvious/sdk.py/pull/104
* Omit examples specifications by mtth in https://github.com/opvious/sdk.py/pull/105


**Full Changelog**: https://github.com/opvious/sdk.py/compare/v0.16.8...v0.17.0rc3

What's Changed
* Make docopt optional by mtth in https://github.com/opvious/sdk.py/pull/102


**Full Changelog**: https://github.com/opvious/sdk.py/compare/v0.16.7...v0.16.8rc1

What's Changed
* Add tensor total convenience method by mtth in https://github.com/opvious/sdk.py/pull/101


**Full Changelog**: https://github.com/opvious/sdk.py/compare/v0.16.6...v0.16.7rc1

What's Changed
* Rethrow notebook import exception by mtth in https://github.com/opvious/sdk.py/pull/100


**Full Changelog**: https://github.com/opvious/sdk.py/compare/v0.16.5...v0.16.6rc1

What's Changed
* Support explicit alias quantifiables by mtth in https://github.com/opvious/sdk.py/pull/98
* Fix subtraction precedence by mtth in https://github.com/opvious/sdk.py/pull/99


**Full Changelog**: https://github.com/opvious/sdk.py/compare/v0.16.4...v0.16.5rc2

What's Changed
* Skip magic cells when importing notebooks by mtth in https://github.com/opvious/sdk.py/pull/95
* Add dry-run command option by mtth in https://github.com/opvious/sdk.py/pull/96
* Allow validating all notebook models by mtth in https://github.com/opvious/sdk.py/pull/97


**Full Changelog**: https://github.com/opvious/sdk.py/compare/v0.16.3...v0.16.4rc3