(super-apropos-check-elc-file): New function.
specifies which file to search.
(apropos-files-scanned): New variable.
(super-apropos): Bind apropos-files-scanned.
Update apropos-accumulate from apropos-print-matches.
Call super-apropos-accumulate before checking for no matches.
(super-apropos-check-doc-file): Don't visit the file, just insert it.
(super-apropos-accumulate): When doc string is in a file, scan that file.
(apropos-print-matches): Return the sorted list.
(safe-documentation): Handle compiled files.