urbi: fix Lobby.copyright.
urbi: fix Lobby.copyright.

	* share/urbi/package-info.u.in (PackageInfo.init): Initialize the
	dependencies list for each new instance to avoid COW on it.
	This appeared since the recent changes on the semantics of List.+=.

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