new file:   ../nagios/scripts/check_bad_urms_seq_no.sh
	Looks at the number of different values from the message counter
	from the ramp meter computer. The latter sends a message to the
	arterial computer whenever it polls the ramp meter. It increments
	its message counter every time, so this counter should be constantly
	incrementing until it rolls over at 255. If it stops, then there are
	no messages being received from the ramp meter computer, and we should
	restart the data collection (since there's no way to gracefully reset
	the tcp connection on a listener).
modified:   ac_rm_algo.c
	Changed type of trigger list from unsigned int* to int*
modified:   ac_rm_table.c
	Added plan number for metered lanes and is_metering
modified:   ../system/gd
	Added check_bad_urms_seq_no.sh to check messaging
	from ramp meter computer