WebSocket view: now use DuckDuckGo-advanced example.
WebSocket view: drop self var and use default value pattern.
WebSocket view: remove empty line in doc blocks.
WebSocket view: drop self var in Feature view.
WebSocket view: call super constructor at the beginning of initializer.
WebSocket view: fix doc spaces.
WebSocket view: wsNamespace var is now WS_NAMESPACE constant.
WebSocket view: remove empty catch clause.