* Added assets (attachments) to the releases.
- Added three new endpoints to the release api for attachments.
- List assets: GET /repos/:owner/:repo/releases/:id/assets
- Get single asset: GET /repos/:owner/:repo/releases/assets/:id
- Get /repos/:owner/:repo/releases/latest` that gets the latest published full release for the repository. Draft releases and prereleases are not returned by this endpoint.
Signed-off-by: Petrisor Lacatus <placatus@ptc.com>