10/30/00 renamed repeat_bit toggle_bit support for either in config file.
	 renamed SHIFT_ENC to RC5
	 added support for min_repeat
	 added frequency, duty cycle (can now read in from config files, but not implemented).
	 added s_strtoui function to support the above addition

11/04/00
	 implemented duty_cycle and frequency

todo-----
	add RC-MM support    ---------Chris said nevermind so this can be removed from the todo list
	add RC6 support (biphase???)