Restore the platforms setup for the pants binary.
Review Request #112 — Created March 16, 2014 and submitted
Restore the platforms setup for the pants binary. This restores the status quo ante until we can figure out a better way, so that Foursquare can build pexes from HEAD.
Actually, I rescind that approval. When cherry-picked onto head, this doesn't build. It gives the "can't find coverage 3.6b1" error, which was discussed on the mailing list thread that prompted this change.