message: update changelog for v0.30.6
diff: @@ -6,6 +6,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  +## [0.30.6] - 2021-02-07
  +### Fixed
  + - bad transpile for nested class method super calls
  + - SceneGraph node attributes being wrongly removed when modifying attributes
  +
  +
  +
  ## [0.30.5] - 2021-02-03
  ### Added
  - syntax support for dim statements
  @@ -912,3 +919,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  [0.30.3]: https://github.com/rokucommunity/brighterscript/compare/v0.30.2...v0.30.3
  [0.30.4]: https://github.com/rokucommunity/brighterscript/compare/v0.30.3...v0.30.4
  [0.30.5]: https://github.com/rokucommunity/brighterscript/compare/v0.30.4...v0.30.5
  +[0.30.6]: https://github.com/rokucommunity/brighterscript/compare/v0.30.5...v0.30.6
  \ No newline at end of file
  