Created by: fx
It might be a little early, but I wanted to use Rails 5 w/ Administrate.
Probably not a candidate for merging right away as it depends on a couple of unreleased gem versions (see Gemfile for notes.) But I wanted to get the process kicked off here.
This is backwards-compatible w/ Rails 4.2+, so for a merge we should swap the gemspec back to >= 4.2
No major complications to report.