message: Setup use of logger in briefcase manager.
diff: import { AccessToken, Briefcase as HubBriefcase, IModelHubClient, ChangeSet, IModel as ConnectIModel } from "@bentley/imodeljs-clients";
  import { DbResult, OpenMode } from "@bentley/bentleyjs-core/lib/BeSQLite";
  import { assert } from "@bentley/bentleyjs-core/lib/Assert";
  +import { Logger } from "@bentley/bentleyjs-core/lib/Logger";
  import { BriefcaseStatus, IModelError } from "../common/IModelError";
  import { IModelVersion } from "../common/IModelVersion";
  import { IModelToken, Configuration } from "../common/IModel";
  @@ -231,7 +232,7 @@ export class BriefcaseManager {
  if (BriefcaseManager.cache) {
  if (BriefcaseManager.hubClient!.deploymentEnv === Configuration.iModelHubDeployConfig)
  return;
  - // console.log("Detected change of configuration - reinitializing Briefcase cache!"); // tslint:disable-line:no-console
  + Logger.logWarning("Detected change of configuration - reinitializing Briefcase cache!");
  }
  const startTime = new Date().getTime();
  @@ -263,7 +264,7 @@ export class BriefcaseManager {
  briefcase.changeSetIndex = await BriefcaseManager.getChangeSetIndexFromId(accessToken, iModelId, briefcase.changeSetId);
  } catch (error) {
  // The iModel is unreachable on the hub (the current deployment configuration is different, or the imodel was removed)
  - console.log(`Unable to find change set information for ${briefcase.iModelId} on the Hub. Deleting it from the local cache`); // tslint:disable-line:no-console
  + Logger.logWarning(`Unable to find change set information for ${briefcase.iModelId} on the Hub. Deleting it from the local cache`);
  BriefcaseManager.deleteBriefcaseFromLocalDisk(localBriefcase);
  }
  @@ -274,14 +275,14 @@ export class BriefcaseManager {
  hubBriefcases = await BriefcaseManager.hubClient.getBriefcases(accessToken, iModelId);
  } catch (error) {
  // The iModel is unreachable on the hub (the current deployment configuration is different, or the imodel was removed)
  - console.log(`Unable to find imodel ${briefcase.iModelId} on the Hub`); // tslint:disable-line:no-console
  + Logger.logWarning(`Unable to find imodel ${briefcase.iModelId} on the Hub`); // tslint:disable-line:no-console
  }
  }
  const hubBriefcase = hubBriefcases.find((bc: HubBriefcase) => bc.briefcaseId === localBriefcase.briefcaseId);
  if (!hubBriefcase) {
  // The iModel is unreachable on the hub (the current deployment configuration is different, or the imodel was removed)
  - console.log(`Unable to find briefcase ${briefcase.iModelId}:${briefcase.briefcaseId} on the Hub. Deleting it from the local cache`); // tslint:disable-line:no-console
  + Logger.logWarning(`Unable to find briefcase ${briefcase.iModelId}:${briefcase.briefcaseId} on the Hub. Deleting it from the local cache`); // tslint:disable-line:no-console
  BriefcaseManager.deleteBriefcaseFromLocalDisk(localBriefcase);
  continue;
  }
  @@ -294,6 +295,7 @@ export class BriefcaseManager {
  }
  }
  + // TODO: Temporary logging for resolving potential performance issue with briefcase manager initialization
  console.log(` ...initialization of briefcase cache: ${new Date().getTime() - startTime} ms`); // tslint:disable-line:no-console
  }
  