Jordan Tepper

## Summary

Use circle ci [matrix jobs](https://circleci.com/blog/circleci-matrix-jobs/) to accomplish this

Make an example folder with a simple project to aid with development

Warn on old js runtimes

5

Closes #948 ### Summary Added a check to see what node version is being used in `railtie.rb`. I am not a ruby/rails dev, but after some looking this seemed like...