v1.2.0

• refactor(demo, ALBridge, WebViewExtension): Remove functions that are not related to web view from the web view extension
• fix(demo, ALBridge, WebViewExtension): Remove unnecessary unconditional unwrapping
• docs(README, podspec): Update documents

v1.1.0

- Support progress callback
   Add progress changed handler to JSAction to support notification that progress has changed.
- Fix mutile-thread support
   Mark completionHandler and progressChangedHandler as @escaping closures

v1.0.0

• JS Action
  JS Action is called by java script post message. The result of java script action is returned through asynchronous callbacks
• Native event dispatch
  Native event is distributed to the window object and in java script code it can be subscribed to by window.addEventListener(event, handler)
• White list
  Only sites on the white list can use java script bridge