documentation baby-steps

 * Default doc/Makefile command now generates all docs and cleans up
   temporary files.

 * Generate info as well, and use makeinfo to generate the html.

 * Spit out a ifnottex.include for @&key macros, etc for the benefit
   of makeinfo.

 * Clean up &WHOLE and &ENVIRONMENT from the lambda-lists.

 * MAKE-CIRCULAR-LIST was documented twice, oops.