rem: const char *button2 = NULL, const char *button3 = NULL, button_width width = B_WIDTH_AS_USUAL,  alert_type type = B_INFO_ALERT)
add: const char *button2, const char *button3, button_width width,  alert_type type)
context: TimedAlert::TimedAlert(const char *title, const char *text, const char *button1,	const char *button2 = NULL, const char *button3 = NULL,	button_width width = B_WIDTH_AS_USUAL,  alert_type type = B_INFO_ALERT)	: BAlert(title, text, button1, button2, button3, width, type),	fRunner(NULL){	}