Start passing values through a consensus facilitator, which will combine data from the various sources and come up with "most right" values.
For now, only display values for which we have 100% consensus.
Added value queries to the consensus facilitator.
Made some balance source values more click-friendly.
Added the link back to the original source of the exchange value data back in (partially rolls back f4a3610329638091d27cb00078d0280e87159139).