* **schema:** make api_version read-only in schema ([b50912c](https://github.com/pollination/queenbee/commit/b50912c976fffa90d4985ddf3e102dc64f1cfb86)), closes [#216](https://github.com/pollination/queenbee/issues/216)
* rename plugin.yaml and recipe.yaml to package.yaml ([e756a78](https://github.com/pollination/queenbee/commit/e756a78f569e1087eeecb5eba950e426e7711047)), closes [#199](https://github.com/pollination/queenbee/issues/199)
* **job:** limit dict labels to str:str type ([b4ff0fb](https://github.com/pollination/queenbee/commit/b4ff0fb921ddb237e368a7dd4fae2173b7a51bbf)) * **status:** make source field optional ([a3ff15d](https://github.com/pollination/queenbee/commit/a3ff15d467d029ecfbda8522a3eb33eea756df40))