message: Fix missing interface implementation in test utils
diff: @@ -29,6 +29,8 @@ export class TestDeltaQueue extends EventEmitter implements IDeltaQueue {
  }
  export class TestDeltaManager implements IDeltaManager {
  + public minimumSequenceNumber: number;
  +
  public inbound = new TestDeltaQueue();
  public outbound = new TestDeltaQueue();
  