Revert "Revert "Pin version of setuptools""

This reverts commit b7ebc4765a327e97837f2f6696682859eb77a93d.

We weren't quite ready yet... :/

Change-Id: Idccc4b79a700ca34a80f590e942e1647cdfdefb0
Merge "Revert "Revert "Pin version of setuptools"""