message: Fix merge bug.
diff: @@ -8,7 +8,6 @@ import {
  MessageType,
  Robot } from "@prague/runtime-definitions";
  import * as core from "@prague/services-core";
  -import * as utils from "@prague/services-utils";
  import { Router } from "express";
  import * as jwt from "jsonwebtoken";
  import * as moniker from "moniker";
  @@ -21,7 +20,7 @@ interface IOperation {
  }
  export function create(
  - producer: utils.IProducer,
  + producer: core.IProducer,
  appTenants: IAlfredTenant[],
  tenantManager: core.ITenantManager,
  storage: core.IDocumentStorage): Router {
  