code: function fidjTimestampFormat(timestamp) {
      var date = new Date(timestamp);
      return fidjPadNumber(date.getFullYear(), 4) + '-' +
          fidjPadNumber(date.getMonth() + 1, 2) + '-' +
          fidjPadNumber(date.getDate(), 2) + ' ' +
          fidjPadNumber(date.getHours(), 2) + ':' +
          fidjPadNumber(date.getMinutes(), 2) + ':' +
          fidjPadNumber(date.getSeconds(), 2);
  }
docs: Return a string format "yyyy-MM-dd HH:mm:ss" from a Number which is the result of any Date.getTime (timestamp in ms).
  @param {Number} timestamp in ms since 1/1/1970
  @returns {string} result