* manifest make file-type descriptions simpler to understand

  * copyright restricted to rights tag, unless none, in which case rights tag
    gets creator information
  * copyright mark picked up in rights if 'Copyright (C)' is used

  * tex/pdf url matching semi-colon following url

  * endnote heading, apply tag to exclude numbering and segment heading where
    there is no segment

  * html scroll endnote text minor fix

  * initialize site structure, make copy site images default (sisu -CC)