-Add a rhel4 specific compute profile template
-Have anaconda seek out 'generics' of osver for templates
-Add RHAS4.6 x86_64 discid to known disc ids
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@1222 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd