- [Label extension](extensions/label/README.md):
- moved label:classes to be a list of Class Objects from a single Class Object in spec markdown and json schema (matching previous example JSON).
- moved label:overview to be a list of Overview Objects from a single Overview Object in spec markdown and json schema (matching previous example JSON).
- Renamed fields to use plural forms (`label:property` -> `label:properties`, `label:task` -> `label:tasks`, `label:method` -> `label:methods` and `label:overview` -> `label:overviews`)