RTP: Optimize and fix a bug when using commitTriggerVarName.
RTP: Optimize and fix a bug when using commitTriggerVarName.

	* sdk-remote/src/uobjects/urbi/rtp.uob/rtp.cc:
	Use cachedVars for commitDelay and commitTriggerVarName.
	Never async commitGroup if commitTriggerVarName is set.

aldebaran/urbi,urbiforge/urbi,urbiforge/urbi,aldebaran/urbi,urbiforge/urbi,aldebaran/urbi,urbiforge/urbi,urbiforge/urbi,urbiforge/urbi,aldebaran/urbi,aldebaran/urbi,aldebaran/urbi,urbiforge/urbi,urbiforge/urbi,aldebaran/urbi,aldebaran/urbi,urbiforge/urbi