Revert "Removed old rvm travis tests"

This reverts commit ffcd33903f.

.travis.yml

@@ -1,7 +1,14 @@
 sudo: required
+language: ruby
 services:
   - docker
+rvm:
+- 2.4.2
+env:
+- DB=sqlite
 script:
+#- RAILS_ENV=test bundle exec rake db:migrate --trace
+#- bundle exec rake test
 - bash bin/run-tests-with-docker.sh
 deploy:
   provider: heroku