Older versions of activerecord require sqlite ~> 1.3.6, but not in the
gemfile, the constraint is enforced when you load the adapter.

This allows us toe specify in the environment the version of the gem
we'd like to run against.

We are trying to test our application on rails 6.0.0.alpha but we can't install this because of the version lock
Probably this will be helpful that we can try and report any issues with edge rails

Fixes #143

Fixes #95