Some nsverify fixes:

	* tbsetup/ns2ir/nstb_compat.tcl: Change tb-set-node-startcmd to
	actually create the program agent.  Add an "unknown" instproc for
	LanNode so "mustdelay" and whatever else works.

	* tbsetup/nsverify/ns-2.27.patch, tbsetup/nsverify/ns-2.29.patch:
	Use real_set when setting last_host/last_whateva.

	* tbsetup/nsverify/nstbparse.in: Don't do a rename for
	non-globals.

	* tbsetup/nsverify/tb_compat.tcl: Match behavior in the NS parser
	where the user manually sets/clears red_/gred_ in a queue object.
	Also need to output "h" lines for node objects that weren't stored
	in a global variable and so only have an internal name.