* scheme-using.texi: New (merged with modifications from CVS
HEAD).
* Makefile.am, gds-scheme.el, gds-server.el, gds.el: New (merged
with modifications from CVS HEAD).
* debugging/Makefile.am, debugging/example-fns.scm,
debugging/ice-9-debugger-extensions.scm, debugging/steps.scm,
debugging/trace.scm, debugging/traps.scm, debugging/trc.scm: New
(merged with modifications from CVS HEAD).
* gds-client.scm, gds-server.scm: New (merged with modifications
from CVS HEAD).
