fixes #197 - adds support for 'false' default scope in Token controller
Add explode to checkRestrictedGrant in PDO Storage
Merge branch 'develop' of https://github.com/bshaffer/oauth2-server-php into issue-200
Add test for storage check restricted grant type
Add unit testing and apply fix to checkRestricted method of Redis storage
Merge pull request #202 from Rockstar04/issue-200

Add explode to checkRestrictedGrant in PDO Storage
Add redirect_status_code config param for AuthorizeController
Fixed call to LogicException
Merge pull request #204 from bgaluszka/develop

Fixed call to LogicException
fixes #205 - ensures unnecessary ? is not set when query is empty
Merge branch 'develop' of https://github.com/bshaffer/oauth2-server-php into develop
Merge pull request #203 from ademarre/201-configure-redir-code

Add redirect_status_code config param for AuthorizeController
Merge branch 'develop' of https://github.com/bshaffer/oauth2-server-php into develop
fixes getUserCredentials by standardizing on 'user_id' for all fields
fixes unnecessary BC breaking changes made by 69ba3a2
Implement ScopeInterface for PDO, Redis

* Added tests and supporting data for Memory, PDO, Redis
Merge pull request #217 from dsquier/develop

Implement ScopeInterface for PDO, Redis
Updated docblocks for RefreshTokenInterface.php

`user_id` field was missing for set/get refresh token methods.
Merge branch 'develop' of https://github.com/bshaffer/oauth2-server-php into develop
fixes #224 - makes  and  protected properties