add support for ssl connections
add import for crypto/tls
TLSClient testing, versioned api fixed, fake cert and key.
Insecure is default to true
Add ca check, secure connection, renew certificates
documentation changes on TLS clients
Merge branch 'master' of github.com:jbdalido/go-dockerclient
Merge remote-tracking branch 'origin/master' into provide-build-tar-stream-for-user
Updating test after merging master