Comment 8 for bug 1685929

Because of the refactoring and the multiple rebases that Cesar's been put through, I'm taking RM privilege to bend the process a bit. I've rebased it for one last time, tested it, written some follow-ups, and pushed to master. Thanks, Cesar!

I've removed the 2.12 target given the refactoring, and will help out to sort any any branches that just got affected by the refactoring of portions of cat/item/app.js to circ/services/item.js.