Staccato 0.0.4

Use Cadence Event Extension

Use the new event extension for Cadence to simplify the expression of the event handling.

Always Listen for Errors

Set an error handler on the stream from the start. Only remove it when you're listening for a specific "open", "drain" or "end" event.

Issue by Issue

• Release 0.0.4. #27.
• Implement event handlers using event extension. #26.
• Always listen for errors. #25.
• Upgrade Cadence to 0.0.42. #24.