message: docs: add changelog for 5.0.5
diff: +<a name="5.0.5"></a>
  +## [5.0.5](https://github.com/angular/angular/compare/5.0.4...5.0.5) (2017-12-01)
  +
  +
  +### Bug Fixes
  +
  +* **compiler-cli:** propagate ts.SourceFile moduleName into metadata ([a2ff4ab](https://github.com/angular/angular/commit/a2ff4ab))
  +* **service-worker:** allow disabling SW while still using services ([f99335b](https://github.com/angular/angular/commit/f99335b))
  +* **service-worker:** don't crash if SW not supported ([ee37d4b](https://github.com/angular/angular/commit/ee37d4b))
  +* **service-worker:** send initialization signal from the application ([6bf07b4](https://github.com/angular/angular/commit/6bf07b4))
  +* **service-worker:** use relative path for ngsw.json ([56c98f7](https://github.com/angular/angular/commit/56c98f7))
  +
  +
  +
  <a name="5.1.0-rc.0"></a>
  # [5.1.0-rc.0](https://github.com/angular/angular/compare/5.1.0-beta.2...5.1.0-rc.0) (2017-12-01)
  