message: update changelog for 0.9.8
diff: @@ -5,6 +5,13 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
  and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
  +## [0.9.8] - 2020-05-16
  +### Changed
  + - the inner event system handling file changes. This should fix several race conditions causing false negatives during CLI runs.
  +### Fixed
  + - some bugs related to import statements not being properly traced.
  +
  +
  ## [0.9.7] - 2020-05-14
  ### Changed
  @@ -272,6 +279,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  +[0.9.8]: https://github.com/rokucommunity/brighterscript/compare/v0.9.7...v0.9.8
  [0.9.7]: https://github.com/rokucommunity/brighterscript/compare/v0.9.6...v0.9.7
  [0.9.6]: https://github.com/rokucommunity/brighterscript/compare/v0.9.5...v0.9.6
  [0.9.5]: https://github.com/rokucommunity/brighterscript/compare/v0.9.4...v0.9.5
  