This commit causes `@书社:archived-as` to be dropped in the following
cases :—
- In the components of archives, during extraction.
- In wrapped nodes, where it is raised to the wrapping `<html:html>`
element.
It also makes `lib/archive2extractor.xslt` a prerequisite for the
finalization step and `lib/catalog2transform.xslt` a prerequisite for
results, to ensure that files are appropriately updated when these
change.