message: bank-demo - open briefcase read-only (not pullAndPush)
diff: // tslint:disable-next-line:no-var-keyword
  // tslint:disable-next-line:no-var-requires
  // const prompt = require("prompt");
  -import { BriefcaseManager, IModelHost, IModelDb, OpenParams, IModelHostConfiguration, IModelAccessContext } from "@bentley/imodeljs-backend";
  +import { BriefcaseManager, IModelHost, IModelDb, /*OpenParams,*/ IModelHostConfiguration, IModelAccessContext } from "@bentley/imodeljs-backend";
  import { AccessToken, IModelQuery, IModel as HubIModel, ChangeSet, Version } from "@bentley/imodeljs-clients";
  // import { Logger, LogLevel } from "@bentley/bentleyjs-core";
  import * as path from "path";
  @@ -69,19 +69,22 @@ export class DemoBackend {
  public async logChangeSets(context: IModelAccessContext, accessToken: AccessToken) {
  BriefcaseManager.setContext(context);
  - const iModel: HubIModel = (await BriefcaseManager.hubClient.IModels().get(accessToken, context.projectId, new IModelQuery().byId(context.iModelId)))[0];
  console.log("\niModel:");
  + const iModel: HubIModel = (await BriefcaseManager.hubClient.IModels().get(accessToken, context.projectId, new IModelQuery().byId(context.iModelId)))[0];
  DemoBackend.displayIModelInfo(iModel);
  +
  console.log("\nChangeSets:");
  const changeSets: ChangeSet[] = await BriefcaseManager.hubClient.ChangeSets().get(accessToken, context.iModelId);
  for (const changeSet of changeSets) {
  DemoBackend.displayChangeSet(changeSet);
  }
  +
  console.log("\nVersions:");
  const versions: Version[] = await BriefcaseManager.hubClient.Versions().get(accessToken, context.iModelId);
  for (const version of versions) {
  DemoBackend.displayVersion(version);
  }
  +
  /*
  console.log("\nModels:");
  const imodelDb = await IModelDb.open(accessToken, context.projectId, context.iModelId, OpenParams.pullAndPush());
  @@ -95,7 +98,7 @@ export class DemoBackend {
  public async downloadBriefcase(context: IModelAccessContext, accessToken: AccessToken) {
  BriefcaseManager.setContext(context);
  - const imodel = await IModelDb.open(accessToken, context.projectId, context.iModelId, OpenParams.pullAndPush());
  - console.log(`Downloaded to ${imodel.briefcase.pathname}`);
  + const imodel = await IModelDb.open(accessToken, context.projectId, context.iModelId /*, OpenParams.pullAndPush()*/);
  + console.log(`Briefcase: ${imodel.briefcase.pathname}`);
  }
  }
  