Using the INFO; INFO EMACS text from EMACS; TSINFO 62, dated 1982-01-05. For some unknown reason, we can't use a printing terminal when generating a new TSINFO. Temporarily switch to AAA then back to LA36.
Also make the build script ensure that EMACS; [PURE], [PRFY], and EINIT are built.
There are now separate scripts for: EMACS, LISP (and MACSYMA), SCHEME, and miscellaneous unessential programs.