It looks like Maniaplanet Web Services requires now ManiaLib installed.PHP Fatal error: Class 'ManiaLib\Utils\Singleton' not found in <my_path>\ManiaPlanet-WS-SDK\libraries\Maniaplanet\WebServices\Config.php on line 16

If ManiaLib is requires, please explain.
I try to install ManiaLib but it looks like the path to the library is not defined correct in ManiaPlanet-WS-SDK\libraries\autoload.php. How to install ManiaLib? Do I need to configue ManiaLib? Is it possible to use Maniaplanet Web Services without ManiaLib?
It looks like Maniaplanet Web Services and ManiaLib have to merged in one common directory so the 'libraries' folder is shared. But both ZIP files extracts to different folders 'manialib' and 'maniaplanet-ws-sdk'. That's very confusing.
Using the MPWS SDK 1.1 I only uploaded the 'libraries' folder on the server. That seems not be enough with ManiaLib, right?