0.4.0

• Added ProviderInterface and removed IdentityProvider.
• Expose generated state to allow for CSRF validation.
• Renamed League\OAuth2\Client\Provider\User to League\OAuth2\Client\Entity\User.
• Entity: User: added gender and locale properties
• Updating logic for populating the token expiration time.

0.3.0

This release made some huge leaps forward, including 100% unit-coverage and a bunch of new features.