[CentOS] Build Instructions, utils, used by CentOS team

Hello -

A few months back, I had a bunch of questions regarding hacking up a centOS install, even going as far as editing comps, adding my own packages as part od @base and @core install groups, etc etc. It was quite an adventure.

However, I haven't don it in a while, so naturally, I forgot a lot about it.

I'm trying to remember who it was that had forwarded me docs and scripts used by the CentOS build team, including procedures and the like, which would help me out with this. This information would be an incredible help to me, and I would very very much appreciate it if I could get my hands on this.

Thanks for your time -dant