Update instruction in README.md
Fix documentation on how to set session class
Move integration test from Rails
Fix ActiveRecord::Base namespacing
* AD::ActiveRecordStore was moved out from AR, so calling Base only
doesn't work anymore.
Update gem dependency for AR-deprecated_finders
Add Railtie so Rails will detect the rake tasks
Also, make all the rake tasks visible again.
Move generators to the correct location
Avoid user to having to have additional require
By default, because the gem is named `activerecord-session_store`,
Bundler will try to require 'activerecord/session_store' for you.
Update gemspec to specify only gems we need
Rename storage to AD::Session::ActiveRecordStore
This is to follow the convention from ActionDispatch::Session
Add migration generator
Initial extract from rails/rails@0cda0b3