add IO chapter containing READ-FILE-INTO-{STRING,BYTE-VECTOR}

  change include/fun-alexandria-ensure-gethash.texinfo
  -> include/macro-alexandria-ensure-gethash.texinfo

 * 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.

  Add bunch of missing symbols to the manual, and go over several
  docstrings reformatting them for the benefit of the documentation
  generator.

  (A crapton of symbols are still not in the manual.)

- Added respective documentation to the manual.
- New test: NCONCF.1

Added respective documentation in manual as well.

Added respective documentation to the manual.