Application add use UTC seconds for time values

[laoshanxi]

// append extra string format for time values
Utility::appendStrTimeAttr(result, JSON_KEY_APP_REG_TIME);
Utility::appendStrTimeAttr(result, JSON_KEY_SHORT_APP_start_time);
Utility::appendStrTimeAttr(result, JSON_KEY_SHORT_APP_end_time);
Utility::appendStrTimeAttr(result, JSON_KEY_APP_last_start);
Utility::appendStrTimeAttr(result, JSON_KEY_APP_last_exit);
Utility::appendStrTimeAttr(result, JSON_KEY_SHORT_APP_next_start_time);
if (HAS_JSON_FIELD(result, JSON_KEY_APP_daily_limitation))
{
	Utility::appendStrDayTimeAttr(result, JSON_KEY_DAILY_LIMITATION_daily_start);
	Utility::appendStrDayTimeAttr(result, JSON_KEY_DAILY_LIMITATION_daily_end);
}