Rails 4 test version.

With full cleanup for readability.
Use defined? instead of Rails.env.development?
Nothing secret now but should be .gitignored.

Probably miss from old .gitignore on push.
Delete old .rvmrc

This should be generated from bin/setup.
Add DEBUG to env sample file.
Correct way to check if its defined.
Locale files push and pull.
Add .travis.yml
Merge pull request #1 from futhr/feature/rails-4

Update to clean Rails 4 test app.