message: Fix simple log date bug.
  Fixes
diff: @@ -25,7 +25,7 @@ export class Logger {
  private _logLevel = LogLevel.log;
  private getTimestamp() {
  - let milliseconds: string;
  + let milliseconds = '';
  //show milliseconds when in the more chatty log levels
  if (this._logLevel === LogLevel.info || this._logLevel === LogLevel.debug || this._logLevel === LogLevel.trace) {
  milliseconds = ':SSSS';
  