Rationalize attribute setting.

  Since we were trying to unconditionally revmove A_STANDOUT.

  Now allow multiple values to be set for the highlight variables:

        maildir_highlight_mode( "bold reverse" );
  Updated roadmap.

  Minor edit.  Nothing significant changed.
  new release.  UTF-8 output looks fine.
  Updated the highlight logic, which was wrong.

  This closes #133.

  New point-release imminent
  Consolidated a lot of the email-handling code.

  This updates #131 - still need to move the attachment handling
 to something more sane, and probably reassess the hook-calling code.
  Created CFile::edit() and use it.

  Now we have one place for editing a message which is
 being (c)omposed or (r)eplied to.

  This updates #131.