This cleans up a bit the OCSController/Middleware. Since the 2 versions
of OCS differ a bit. Moved a lot of stuff internal since it is of no
concern to the outside.
The OCS Controller requires a DataResponse object to be returned.
This means that all error handling will have to be done via exceptions
thrown and handling in the middleware.
* Move a-b to PSR-4
* Move c-d to PSR-4
* Move e+g to PSR-4
* Move h-l to PSR-4
* Move m-r to PSR-4
* Move s-u to PSR-4
* Move files/ to PSR-4
* Move remaining tests to PSR-4
* Remove Test\ from old autoloader
