Fair DJ 1.0.3 R797

FairDJ is intended for one set of speakers per room, where every room has several listeners. To let everyone hear as much of their favourite music as possible, there is a fairness algoritm.
FairDJ decides what to play next, depending on the listeners ratings and how much of their favorite music they have heard recently.

System requirements:
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Enhancements
- Tons of bugs fixed.