GvdB	Fix linkage against qhull. Uncomment '#include <config.h>' in
		Polyhedron.cpp

		Fix automake/autoconf files such that 'make dist' works.

		NB: libmoto can not be mixed with the 3D classes from SOLID
		2.0, since SOLID 2.0 GJK relies on 64-bit float accuracy.

		Update headers to reflect the LGPL status of the new files.

   
