Updated .gitignore.
Timestamp updated.
All the changes in these files are due to fascist SBCL STYLE-WARNINGs (mixing of &optional and &key parameters in the "-producer.lisp" files).
Added file (a bit pleonastic as this could be handled by "issues").
Updated TIMESTAMP.
Added a few documentation strings.
Clozure CL now working.
Minor change to declaration.