This has been completely rewritten to support new features:
- tracks in the recently-played list or in the queue are no longer
eligible for random choice
+ - there is a new 'weight' track preference allowing for non-uniform
+ track selection. See disorder(1) for details.
- there is a new configuration item replay_min defining the minimum
time before a played track can be picked at random. The default is
8 hours (which matches the earlier behaviour).