uobject: Detach periodicCall invocation from setUpdate.
uobject: Detach periodicCall invocation from setUpdate.

Otherwise, calling for instance camera.load=1, triggering an USetUpdate
from the UObject, then closing the connection would loose the USetUpdate.

	* share/urbi/uobject.u (setUpdate): bounce through an event
	to discard the connectionTag.

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