post-install: Fix heuristic used to find boost library path.
post-install: Fix heuristic used to find boost library path.

In theory, this should not be required as said path is supposed to be in RPATH.

	* scripts/post-install.in: Accept '-' and '.' in path.

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