Zingg 0.5.0 Released with Performance Improvements, Enhanced Labeller, and Boolean Support

@channel - released Zingg 0.5.0 today. We have added lot of performance improvements in findtrainingData as well as match/link. the labeller has been enhanced for viewing the records side by side. We have added support for boolean types. A lot of unit and integration tests have been added, along with performance suites. Hope our work will be useful for you! Please do let us know if you see any issues.