fix for not recognized speakers.

This fix modifies the original StreamClientImpl from cling in order to fix an issue with recognizing Sonos speakers. The only change is marked below. It doesn't use the deprecated constructor of Scheme-class anymore, which is differently implemented.

In version 2 of the cling library this is already fixed, thus by upgrading to version 2 this would already be fixed.

I didn't clean up anything, this was just a copy-and-paste fix to make things work.