[BENTO-83] Add working templates for SuSE Linux Enterprise Server 11.
[BENTO-83] Add special note about proprietary boxes and how the URLs are bogus. Reformat readme using atx headers rather than setext, so we get more levels.
BENTO-101: trivial syntax error in scripts/sles/remove-dvd-source.sh
Upgrade CentOS 6.4 templates to 6.5 templates.
Migrate ks.cfgs for RHEL to centos-6.5. Also correct box naming.