message: create correct Exception baseData in ITelemetryItem before passing along
diff: @@ -356,8 +356,9 @@ export class ApplicationInsights implements IAppInsights, ITelemetryPlugin, IApp
  */
  public trackException(exception: IExceptionTelemetry, customProperties?: {[key: string]: any}): void {
  try {
  + let baseData = new Exception(this._logger, exception.exception, exception.properties, exception.measurements, exception.severityLevel)
  let telemetryItem: ITelemetryItem = TelemetryItemCreator.create<IExceptionTelemetry>(
  - exception,
  + baseData,
  Exception.dataType,
  Exception.envelopeType,
  this._logger,
  