consul-ssl-cert and consul-ssl-cacert options are ignored

[mhamann]

Passing in an SSL cert and CA cert/chain seems to have no effect whatsoever. SSL is toggled on with the corresponding option, but then it won't use the cert + CAs in the HttpClient.

Looking at the code, I don't see where these are referenced other than when reading in the options during startup. They don't seem to actually impact what gets set up in the consul connection.