Pulsemixer.getSinks() not working

[nils4cosee]

I just tried your library, annoyed of constantly resetting the default audio-device of my Ubuntu system.

I noticed that Pulsemixer.getSinks() does not find the pulsemixer executable because you are using ./pulsemixer as executable in that method.

That method should probably usePulsemixer.PULSEMIXER_PATH instead.

[nils4cosee]

You don't have to fix this just because of me. But I needed a place to link to from the workaround in my own code.