Correct XProc Pipelines Relative Paths, Stop Runtime Exceptions

[aj-stein-nist]

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[aj-stein-nist]

I updated a Schematron used to query and validate paths of all necessary @hrefs and validate them. I did comment out dead code on some XProc pipelines that are old enough I cannot find a better solution.

[wendellpiez]

Looks nice, thanks AJ!