Neuralogic

What's Changed
* Remove setting for default functions by LukasZahradnik in https://github.com/LukasZahradnik/PyNeuraLogic/pull/61
* Experimental mixed combinations by LukasZahradnik in https://github.com/LukasZahradnik/PyNeuraLogic/pull/60


**Full Changelog**: https://github.com/LukasZahradnik/PyNeuraLogic/compare/v0.7.21...v0.8.0

**Full Changelog**: https://github.com/LukasZahradnik/PyNeuraLogic/compare/v0.7.19...v0.7.21

What's Changed
* Make PyTorch optimizer compatible wth PyNeuraLogic by LukasZahradnik in https://github.com/LukasZahradnik/PyNeuraLogic/pull/55
* Remove setting for default functions by LukasZahradnik in https://github.com/LukasZahradnik/PyNeuraLogic/pull/61


**Full Changelog**: https://github.com/LukasZahradnik/PyNeuraLogic/compare/v0.7.19...v0.7.20

**Full Changelog**: https://github.com/LukasZahradnik/PyNeuraLogic/compare/v0.7.18...v0.7.19