[DotGNU]Building pnet cleanly from pristine sources

[Rhys Weatherley]

I've modified the pnet, pnetlib, and pnetC CVS trees so that it
is now possible to cleanly build the entire stack from source code,
with no "magic assemblies" needed in "pnet/samples".

Previously it was possible to build from pristine sources in 0.4.8,
but some manual hand-holding was required.  The manual parts have
been removed from the build now.

Here is how to rebuild your system from CVS.  I recommended starting
with a clean CVS checkout of pnet, pnetlib, and pnetC:

    cd pnet
    ./auto_gen.sh
    ./configure --enable-maintainer-mode
    make
    make install
    cd ../pnetlib
    ./auto_gen.sh
    ./configure --enable-maintainer-mode
    make
    make install
    cd ../pnetC
    ./configure --enable-maintainer-mode
    make
    make install

The C# samples that used to be in "pnet/samples" are now in the
"pnetlib/samples" directory.  A handy "ilrun.sh" script is provided
in "pnetlib/samples" which makes sure that all the assembly paths
are correct if you haven't done "make install" yet.