Adding rough version of history window in dragonfly adaptive routing. Updating the simulation to display more stats

Adding further updates to the dragonfly routing (statistics for adaptive routing updated, conditions for queue congestion sensing updated)

1) Adding dragonfly adaptive and prog-adaptive routing algorithms--- still testing with more workloads and crosschecking the computation 2) Two bug fixes in credit-based flow control

Introduced back when I added a "last-hop" queue to allow prioritized
messages to go to the front of the set of msgs loggp is to receive. Haven't yet
put it in other models (simple*), so RNG bug doesn't affect there yet.