More robot tweaks:

	* event/sched/event-sched.c: Start rmcd, then vmcd.

	* event/sched/rpc.cc: Add camera dimensions to the config file.

	* robots/emc/emcd.c: Add camera dimensions to the config file and
	destroy vmc's position_list when it disconnects.

	* robots/mtp/mtp.x, robots/mtp/mtp.c: Add dimensions to the camera
	config and add a command_id field to the update_position packet.

	* robots/primotion/garcia-pilot.cc: Move the decl of the acpGarcia
	object below daemon(3) since it doesn't seem to like it when the
	parent process dies and fix the log file creation.

	* robots/primotion/pilotClient.cc: Pass the command_id back in any
	update_position packets.

	* robots/rmcd/rmcd.c: Use the command-id to distinguish between
	STOPs for the sake of a GOTO and a wiggle.

	* robots/vmcd/visionTrack.h, robots/vmcd/visionTrack.c: Only
	coalesce packets from different cameras (duh) and mess with the
	tolerances a little more.

	* xmlrpc/emulabserver.py.in: Add some rough camera dimensions.