- added extra error return parameter to constructor
- failing to parse PEM certificates returns an error (previously nil
return)
- moved Connect logic inside the constructor*
- removed unnecessary fields from poster structure. Use the
configuration fields directly instead.
- removed mutex from poster structure (kafka writer is thread-safe)
- removed nil writer check. Message is exported directly.
- shortened receiver name
(https://google.github.io/styleguide/go/decisions#receiver-names)
*The Kafka Transport is not a connection but a configuration for the
connection created during the first export. The connection and its
related goroutines stay running until manually closed.
