Added
- repka.api.DatabasesRepository - repo that uses [databases](https://github.com/encode/databases) lib allowing to use repka on mysql/sqlite dbs
- repka.api.FakeRepo - repo that uses list of entities instead of real database (draft, features like sqlalchemy-filters are not supported)
Changed
- repka.utils.model_to_primitive - returns dict of python-primitives (e.g. datetime.date is not converted to string)
- Architecture changes: queries building in separate classes; query executor class - abstrasction for aiopg & databases
Removed
- repka.api.ConnectionVarMixin - removed, repo supports both connection in context-var-connection in single contructor