Setup Circle CI, add brakeman config (#13)

* Add circle ci config

* Change config to fix tests

* Update config

* Fix eslint command, add brakeman

shared/config/application.yml

@@ -30,6 +30,8 @@ AWS_REGION: ''
 #chargebee
 CHARGEBEE_API_KEY: ''
 CHARGEBEE_SITE: ''
+CHARGEBEE_WEBHOOK_USERNAME: ''
+CHARGEBEE_WEBHOOK_PASSWORD: ''
 
 #sentry
 SENTRY_DSN: ''