[Ecls-list] Latest changes

[Juan Jose Garcia Ripoll]

Simple ones:

* First argument to slot value setter functions is now specialized to T

* Some slot definitions were not converted from lists to
STANDARD-SLOT-DEFINITION objects at bootstrap. It should now be easier
for users to inspect the classes in the core of ECL.

* The CVS repository for GCL has moved and thus ecl-test has to look for
Paul Dietz's test suite somewhere else.

Juanjo