engine: mv dumb-reconciler.go -> dumb_reconciler.go
registry: give Bids a string
offer: ignore partitioned offers
engine: drop unused partitioning code
engine: drop wipReconciler
engine: add clusterState object
engine: use clusterState object
engine: move commands from reconciler to Engine
engine: use task mechanism in reconciliation
agent: update reconcilier logging
Merge pull request #706 from bcwaldon/engine-tests

Refactor engine reconciler and add tests!