add appraisals gem and Appraisals file

4.1 does not support `after_bundle` so we need to 
isolate a rails 4.1 and 4.0 testing environment

[#85231090]
make it so will only support rails 4.2 and up

it looks like there’s a lot of bugs with how gems
are managed in < 4.2 rails templates

We’ll just require rails 4.2 and up

[#85231090]
bump patch level
Merge branch 'master' of https://github.com/LaunchAcademy/make_it_so