v1.2.1

fixbug: Index Controller return blank data.

v1.2.0

Add features:

1. Token have expiration
2. Each user can have more than one access token with different consumer application

v1.1.0

Add features:

1. AuthMethods from params.php
2. Rate Limit from params.php
3. Change auth_key each time user logged in

v1.0.0

add email in login feedback