message: Update changelog link for 0.8.0
  Update changelog links
diff: @@ -66,7 +66,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
  - Moved caching from schema locaters into SchemaContext only
  - Classes now hold a collection of properties instead of LazyLoadedProperty
  -[Unreleased]: https://tfs.bentley.com/tfs/ProductLine/Platform%20Technology/ECSchema%20Editor/_git/ec-js/branches?_a=commits&baseVersion=GT0.7.0&targetVersion=GBmaster
  +[Unreleased]: https://tfs.bentley.com/tfs/ProductLine/Platform%20Technology/ECSchema%20Editor/_git/ec-js/branches?_a=commits&baseVersion=GT0.8.0&targetVersion=GBmaster
  +[0.8.0]: https://tfs.bentley.com/tfs/ProductLine/Platform%20Technology/ECSchema%20Editor/_git/ec-js/branches?_a=commits&baseVersion=GT0.7.0&targetVersion=GT0.8.0
  [0.7.0]: https://tfs.bentley.com/tfs/ProductLine/Platform%20Technology/ECSchema%20Editor/_git/ec-js/branches?_a=commits&baseVersion=GT0.6.1&targetVersion=GT0.7.0
  [0.6.1]: https://tfs.bentley.com/tfs/ProductLine/Platform%20Technology/ECSchema%20Editor/_git/ec-js/branches?_a=commits&baseVersion=GT0.6.0&targetVersion=GT0.6.1
  [0.6.0]: https://tfs.bentley.com/tfs/ProductLine/Platform%20Technology/ECSchema%20Editor/_git/ec-js/branches?_a=commits&baseVersion=GT0.5.3&targetVersion=GT0.6.0
  