Clean up the header files to only contain those things that
need to be shared between .c files.
Functions that are not shared are now declared static to
make their file scope explicit. Functions that ARE shared
are declared in appropriate headers.
I am not going to claim that I caugh everything, but at
least it is a good start.
Error out immediately if a lustre option was specified,
but no lustre support was compiled in.
Set a flag when any lustre string options are set, to
make the code cleaner.
Christopher J. Morrone