* Add a Makefile in doc/tex/ for generating PDF and HTML
* Add a README.txt file to doc/tex/ to document which tools are used and what
web sites to visit for getting them.
* Update build_tools/prep_tarball to put the proper Asterisk version string
in the automatically generated PDF for release tarballs
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@72982 65c4cc65-6c06-0410-ace0-fbb531ad65f3