chore(release): 0.52.0 [skip ci]

# [0.52.0](https://github.com/saltstack-formulas/mysql-formula/compare/v0.51.0...v0.52.0) (2019-08-17)

### Features

* **yamllint:** include for this repo and apply rules throughout ([9f739fa8](https://github.com/saltstack-formulas/mysql-formula/commit/9f739fa))