Use Centos, not RedHat for os_type_id
Merge branch 'fix-ostype-centos' of git://github.com/chulkilee/bento into chulkilee-fix-ostype-centos

Conflicts:
	definitions/centos-5.8/definition.rb
Don't repeat os_type_id from .centos common defs
Fix Windows 8 Enterprise box builds. KMS license key was outdated, and I allocated insufficient RAM to it.
Merge pull request #44 from juliandunn/fix-windows-8-enterprise

Fix Windows 8 Enterprise box builds.