- resources/validations/src/ssp.sch has Schematron
- resources/validations/test/ssp.xspec has XSpec

- and apply XML formatting

- use global $fedramp-values variable
- change some assertion messages to affirmative
- attempt to minimize HTML Tidy's erroneous whitespace handling
- remove OBE TODOs

- use @pending rather than x:pending for system inventory unit tests
- make pending "when the media-type attribute lacks an allowed value " XSpec test

- change occurrences of SHOULD to should
- change "FIPS 140 validated products" to "FIPS 140 validated modules"

- Change assertion statements to have a positive statement of the constraint
- Comment out dysfuntional doc-available() "resource-rlink-required" rule.
- Change sch:report role from "positive" to "information".
- Comment out informational sch:report items.

This will simplify the options in the UI.

- improve base64 regex
- add checklist references

- correct XSpec base64 context to be valid base64 encoded content

- Use indefinite article ahead of element/attribute names
- End assertion messages witha period.
- Correct typos.
- Remove "Section B" prefixes.
- Expand initialisms and acornyms

- fix one regex
- ensure sibling validation-reference and validation-details cite the same CMVP certificate

- fix typos