CentOS 5.5 converted to Packer.
CentOS 5.5 i386 converted to Packer.
CentOS 5.6 converted to Packer.
CentOS 5.7 converted to Packer.
CentOS 5.8 converted to Packer.
CentOS 5.8 i386 converted to Packer.
CentOS 5.9 converted to Packer.

Upstream Bento doesn't seem to be using DRY scripts for this one, not
sure if that is intentional or not at this stage so kept the same.
Converted CentOS 5.9 i386 to Packer.
CentOS 6.0 converted to Packer.
CentOS 6.2 converted to Packer.
CentOS 6.2 i386 converted to Packer.
CentOS 6.3 converted to Packer.
CentOS 6.3 converted to Packer.
CentOS 6.4 converted to Packer.
CentOS 6.4 i386 converted to Packer.