Revert "Release 1.3.1: Fixes for Rails 5.0 & Squeel, begin Rails 5.1"
Revert "Release 1.3.1: Fixes for Rails 5.0 & Squeel, begin Rails 5.1"

This reverts commit 7cbb6d73954fc35f4f866962ffcae6ec5733f1ce.

activerecord-hackery/polyamorous