[273,60]	Double Ended QUEue.

DEQ.C		Implements a deque. Your tasks sends/receives with it.
		One client used it to save memory in a basic+2 program.
		Each element in the deque is only 12. words, but at least
		it ports to RSX11M.
		No protection or privacy. 1 tasks implements 31. deques
		each of which is a public resource. Tracing provided.
		Tracing is great to debug application programs (because
		anything 12. words wide is a well-defined interface.
