rename translate.scm to compile-ghil.scm, and more work on compiler.texi

rename translate.scm to compile-ghil.scm, and more work on compiler.texi

* doc/ref/api-evaluation.texi: Fix some typos and xrefs.

* doc/ref/compiler.texi (The Scheme Compiler): Document the scheme
  compiler, and start documenting the GHIL language.

* doc/ref/guile.texi (Guile Implementation): Whoops, put autoconf after
  the implementation foo. Unless we want it before?

* doc/ref/history.texi (The Emacs Thesis): Fix typo.

* doc/ref/vm.texi (Environment Control Instructions): Rename offset to
  index.

* module/language/ghil.scm (parse-ghil): Fix what I think was a bug --
  the consumer in a mv-call shouldn't be a rest arg.

* module/language/scheme/Makefile.am (SOURCES):
* module/language/scheme/compile-ghil.scm: Rename this file from
  translate.scm.

* module/oop/goops.scm:
* module/language/scheme/spec.scm: Deal with renaming.