Improve Unsupported message
Add PublishProcessor to processors' list
Fix default get_publish_direct_messages customizable method and related test
Refactor direct_messages 'connection' -> 'websocket'
Fix jsonification of messages (conversion from enum to code number) - tests missing
Merge pull request #9 from ef-ctx/develop

Fix jsonification of messages and refactoring
* defined global method in handler to deliver_messages
Merge @tust13 pull request from deliver-messages to master
Add test to capture the PubSub sequence PUBLISH => PUBLISHED - EVENT
Merge pull request #11 from ef-ctx/general-improvements

Improve test coverage
Add method ClientConnection.get_topics
Merge pull request #12 from ef-ctx/connection-general-topics

Add method ClientConnection.get_topics