Global load shed

Integration of the LoopMonitor and LoadStabilizer into the router and the augmenters.

The router uses the exchange connector's setAcceptAuctionProbability feature to filter out incoming bid requests early to keep the rest of the router alive and well. The augmenter will immediately reply to AUGMENT requests without parsing them.

The LoopMonitor will also bring process-wide duty-cycle metrics for the message loops which should give us a better insight on the performance of the system.