Use ActiveSupport.on_load to correctly re-open ActiveRecord::Base

Use ActiveSupport.on_load to correctly re-open ActiveRecord::Base. https://github.com/rubysherpas/paranoia/issues/335

update ruby and rails versions

Update CHANGELOG.md

Add explicit language about dependent: :destroy

Version 2.2.0

Update README to use proper version for Rails 5

Update homepage in gemspec

The homepage is supposed to be where you can find the code. It is displayed on rubygems.org page. Currently it will redirect you back to the same page. Should point at this github repo.

update the gemspec fields to reduce warnings

Rails 5

Update travis for rails 5

Fixed README for rails 5.

Typo

Rails RC1 and Minor Ruby Bumps for Testing

This is where JRuby becomes 2.3 compatible.

Update rails version in description