Setup Global.evaluate before uobject initialization.
Setup Global.evaluate before uobject initialization.

...so that multiple UObjects can use it in their ctor.

	* share/urbi/uobject.u: Here.

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