Cleanup LD_LIBRARY_PATH settings in documentation.
Cleanup LD_LIBRARY_PATH settings in documentation.

	* doc/QUICK-START.txt: Cleanup LD_LIBRARY_PATH settings.

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