-------------------
New Features:
- Add comments endpoint.
[jaroel,timo,pjoshi]
- Add roles endpoint to list defined global roles.
[jaroel]
- Add JSON schema to registry listing.
[jaroel]
- Allow to manipulate the group membership in the groups endpoint.
[jaroel]
- List and mutate global roles assigned to a user in the users endpoint.
[jaroel]
Bugfixes:
- Bind schema field to context to handle context vocabularies. 389
[csenger]
- The inherit flag was the wrong way around.
Blocked inherit showed up as non-blocked.
[jaroel]