DEBIAN 6.0.5: Change the mirror server to ftp.us.debian.org

This makes the "mirror does not support this release" error go away.
DEBIAN 6.0.6: Make the VM wor better on machines without VT extensions
add SLES-11-SP2-DVD-x86_64-GM template
Fixed the markup for the non-vagrant usage
Merge pull request #480 from ankurcha/patch-1

Fixed the markup for the non-vagrant usage
Merge pull request #457 from eladroz/master

SLES 11SP2 Template
Merge pull request #456 from edgester/debian-squeeze-fixes

Debian squeeze fixes