autoload property for functions from contrib packages



Volker,

Thanks for looking into this. About these items --

> cholesky                <-- naming conflict !

cholesky in share/linearalgebra should take precedence.
I'll cut out the other one (share/contrib/cholesky.mac).

> rank                    <-- naming conflict !

rank in share/linearalgebra should take precedence.
I'll cut out the other one (in src/matrix.lisp).

> sprint  <-- function is already (again) in src

sprint should be moved back to stringproc (from src/plot.lisp).

best
Robert