Remove redundant code in getAccessTokenData(), fix token check that is too strict.
fixes #90 - sets response property in handleAuthorizeRequest
Merge branch 'develop' of http://github.com/bshaffer/oauth2-server-php into develop
Merge pull request #74 from bojanz/no_error_on_missing_token_param

Missing token param in getAccessTokenData() doesn't return an appropriate error response
Merge branch 'develop' of http://github.com/bshaffer/oauth2-server-php into develop
being anal and replacing 'xxx === null' with 'is_null(xxx)'
Merge remote-tracking branch 'upstream/develop' into develop