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.
@tas50 I just can't see adding Tier 1 support and all the infrastructure involved to do that for something that's going to be end-of-life in 11 months.