Some guilt fixes

["Horst H. von Brand" <vonbrand@inf.utfsm.cl>]

The following two patches clean guilt up a bit.
The first one cleans up the Makefiles, the second one
runs the tests on the files at hand, not the installed ones
(if they exist at all).

Please consider placing a file giving contact information (and how to
participate in its development) under Documentation.

I understand you have to point explicitly at the COPYING file in each
of the files in the package to make the license stick. Please check
this.
-- 
Dr. Horst H. von Brand                   User #22616 counter.li.org
Departamento de Informatica                    Fono: +56 32 2654431
Universidad Tecnica Federico Santa Maria             +56 32 2654239
Casilla 110-V, Valparaiso, Chile               Fax:  +56 32 2797513