Log Message:
Changes 3.7:
* backspace/DEL means 'n' in replace prompt for better emacs
  compatibility
* Menus are now made up of macros instead of options.
* ^T is now a user definable menu system
* Treat \ as a quote character for file I/O.  Now you can edit
  files like !test with \!test
* Print NULs in default search string.  Handle many \s properly.
* Allow backslashes in file names
* Fix %A to print unicode
* Charles Tabony's (vectorshifts's) highlighter stack patch
* ! is relace all in replace prompt
* Turn off UTF-8 when we enter hex mode
* Call ttsig on vfile I/O errors.
* Abort cleanly when malloc returns NULL
* Add reload command to reload file from disk
* Modify configure scrips to use docdir for extra documents and
* Don't use bold yellow, it's bad for white screens
* Fix TeX highlighter: don't highlight "
* Make mail.jsf more forgiving for those of us who still use old UNIX mail
* Fix file rename bugs
* Improve ubop: can reformat a block of paragraphs again.  Reformat
  of adjacent indented paragraphs working again.
* Improve XML highlighter: allow \r in whitespace