0.3.0

• All messages set now have the NO_PUSH notification type
• Added typing indicators and realistic typing speeds
• Support FacebookTemplates use directly in script array
• Add baseUrl support to Dialogue
• Support defaultAction in ResponseHandlers
• BREAKING CHANGE: remove onComplete handler
• Add support for ! prefix to labels to stop fall through
• Extra arg to UnexpectedInputError constructor: repeatQuestion
• Don't repeat anything but asks on undo
• Allow response handlers to return promises
• Add mock functions and Dialogue.execute function for easier testing