v0.12.0

Fixed

• part-ref reads a citation written as a link. A corpus cites a part as a code span, and as a link carrying the
  citation as its text or as its label. Only the code span was resolved. A link naming a clause or a term that does
  not exist passed kac validate, because a link resolves against a page and the page carries whichever part the
  citation claimed. Every form now reports under part-ref, and a link spelling the separator as a colon is reported
  as one, so a corpus using the link form may see errors it did not before.

• A type index links a record through the category folder holding it. kac generate wrote the filename alone, so
  a record filed under a category below the type's folder was linked as though it sat beside the index. Standards are
  filed that way by declaration, and every link to one was dead.