• API for 1.0 is now frozen!
• BREAK: Convert all uses of "User" to "ResourceOwner" to more closely match the OAuth 2.0 specification.
• BREAK: Rename StandardProvider to GenericProvider.
• BREAK: Move access token creation to the AbstractProvider. It was previously handled in the AbstractGrant.
• FIX: Add Content-Type header with value of application/x-www-form-urlencoded to the request header when retrieving access tokens. This adheres to the OAuth 2.0 specification and fixes issues where certain OAuth servers expect this header.
• Enhanced json_encode() serialization of AccessToken; when using json_encode() on an AccessToken, it will return a JSON object with these properties: access_token, refresh_token, and expires_in.