- eth
    - In EventsByBlock calls ignore blockNum if blockHash != nil.  This fixes
      the issue where a blockNumber and blockHash was being passed, which the
      eth events query function doesn't allow, causing the synchronizer to fail
      at every iteration.
- Node/Config
    - Add Coordinator.Debug.RollupVerifierIndex to force choosing a particular
      verifier by index in the Rollup smart contract.