Added a macro to the SPEC so setting beta = 1 builds with the build requires for 3.1-Beta and beta = 0 builds with the build requires for GA. Still need to:

- Add new guide(s) - CLI guide is outstanding.
- Add new guides (CLI and Developer) to whitelist, as well as beta versions of all guides.

+ Logic to rename the PDF files correctly!

Something like:

for FILE in `find . -name '*.pdf'`; do mv ${FILE} ${FILE/3.1-Beta/3.1}; done

This is to ensure that the splash page links won't need to be changed back and forth. Doesn't apply to html versions.