Switch to using PSR-4.

Signed-off-by: Jason Lewis <jason.lewis1991@gmail.com>
Properly validate scopes and allow setting of default scopes for resources.

Signed-off-by: Jason Lewis <jason.lewis1991@gmail.com>
Updating changes for 0.1.2 release date.

Signed-off-by: Jason Lewis <jason.lewis1991@gmail.com>