Platform support policy proposal

There is a fair amount of confusion about the specific operating system platforms, platform versions, etc. that Chef Software, Inc. supports for its products. This RFC will clarify this by calling out the individual operating systems and their releases as explicitly supported or not.
I actually think its a bad idea to accept patches for ancient operating systems that we can't test on.  Its solving a problem that we don't have for one, its going to break, and its very likely going to overly complicate building on the systems that we need to support.  Scope creep in omnibus-chef is actually not cheap at all, its not just as simple as an #ifdef since in order to maintain omnibus-consistent builds we may have change how we build on RHEL7 in order to support AIX5.1