* New type of server hook: CtdlRegisterFixedOutputHook(). This is for

* New type of server hook: CtdlRegisterFixedOutputHook().  This is for
  extending the fixed_output() function for arbitrary new MIME types.  The
  usefulness of this for end users is limited, since no clients use MSG0
  anymore.  The real purpose of converting various MIME types to text is to
  make them visible to the full text indexer.
* serv_vcard.c: registered a fixed output hook for text/x-vcard.
: