[relax-ng] PDF and PS

I took the liberty of creating PDF and PS version of the 1.0 specs. You can
preview them at:

http://www.wyeast.net/compatibility-20011203.pdf
http://www.wyeast.net/spec-20011203.pdf
http://www.wyeast.net/tutorial-20011203.pdf

http://www.wyeast.net/compatibility-20011203.ps
http://www.wyeast.net/spec-20011203.ps
http://www.wyeast.net/tutorial-20011203.ps

Nothing fancy. Should we offer alternative formats on the committee site? I
think its a convenience that folks like. Please report any errors.

Mike