Test against response parts instead of whole response

This will keep the tests from failing on the transaction number
Merge pull request #5 from allolex/add_code_climate

Add Code Climate badge to readme
Merge pull request #6 from allolex/add_circle_ci

Add .ruby-version for Circle CI
Merge pull request #2 from allolex/update_tests_for_fixture_changes

Test against response parts instead of whole response
Add Circle CI YAML configuration file