Merge pull request #18 from AKimZ/audrey

added figaro, request url now an env variable
interpolation on env variable in http request to shipping service
Can process cents from service into dollars in application
Merge pull request #19 from AKimZ/process_cents

Can process cents from service into dollars in application
Merge branch 'master' of github.com:AKimZ/Shipping_Sloths
things not nil