o Added TOC (finally) and a nearly complete set of associated

o Added TOC (finally) and a nearly complete set of associated
  control macros

o Added new control macros to endnotes:

  ENDNOTES_STRING_CAPS       - capitalize the endnotes string
  ENDNOTES_NO_COLUMNS        - allows docs in columns and endnotes not
  ENDNOTES_PAGENUM_STYLE     - set page numbering style for endnotes
  ENDNOTES_FIRST_PAGENUMBER  - set first pagenumber for endnotes
  ENDNOTES_ALLOWS_HEADERS    - page headers on endnotes pages off or on
  ENDNOTES_NO_FIRST_PAGENUM  - allows non-printing first page number when page footers are being used instead of headers
  ENDNOTES_SINGLE_SPACE      - for TYPEWRITE, if doc double-spaced
  SUSPEND/RESTORE_PAGINATION - turns page numbering off for endnotes

o Added an ADJUST option to ENDNOTE_LEAD

o Added DOC_TITLE (like TITLE, but sets document-wide title for collated docs)

o Added HDRFTR_CENTER_PAD, to allow adjustments to placement of
  HDRFTR_CENTER_STRING

o Added BLANKPAGE macro, to output blank pages (silently numbered)

o Extensive changes to DEFAULTS, START, COLLATE, HEAD, SUBHEAD and
  PARAHEAD because of new TOC and extended flexibility of ENDNOTES
  page design

o Fixed DOCHEADER OFF (distance), FINIS

o (Re)-fixed handling of post epigraph spacing after #START for
  TYPEWRITE double-spaced.