Move to oauth2-client 2.0.x

Add support for PHP 7.1
Move to oauth2-client ^2.0

User Info Url Case Change

A case change to the url that is used to retrieve user information.

Tidy up of type hinting and doc blocks

This is a tidy up of type hinting and doc blocks as suggested by the submission of this OAuth2 provider into the list of third-party providers available to PHP Leagues OAuth2 Client library.

Initial Release

1.0.0

Initial commit