Imports
- golang.org/x/oauth2
- golang.org/x/oauth2/google
- github.com/julienschmidt/httprouter
- github.com/TV4/logrus-stackdriver-formatter
- github.com/SermoDigital/jose/crypto
- github.com/SermoDigital/jose/jws
- github.com/SermoDigital/jose/jwt
- golang.org/x/crypto/nacl/secretbox
- github.com/sirupsen/logrus