Correct Java compiler warnings
MODE-2088 Ring buffer implementation, suitable for evaluation and trial.
MODE-2088 Added support for dynamically removing consumers, added more tests, and improved resiliency.
MODE-2088 Created RingBufferBuilder utility that can handle more options, and added garbage collection to the ring buffer. The latter is a thread that follows all other consumers, nulling out the entries that have already been processed. This will reduce the overall footprint, even when the entry objects may be large. Garbage collection is optional and disabled by default.
MODE-2088 Updated the RingBuffer implementation and finished the CircularChangeBus which is now used by the repository.