Work in progress on breakpoints. Do not use.

src/e-server:
	* src/GdbServer.cpp (GdbServer::rspVCont): Simplify logic and deal
	with pending stops.
	(GdbServer::extractVContAction): Move warnings about invalid
	packets here.
	(GdbServer::pendingStop): Created.
	(GdbServer::markPendingStops): Created.
	(GdbServer::removePendingStop): Created.
	(GdbServer::doStep): Report exception, deal with pending stops.