v4.0.0

• Updated onCreateWindow, onJsAlert, onJsConfirm, onJsPrompt webview events
• Added onCloseWindow, onTitleChanged, onWindowFocus, onWindowBlur webview events
• Added androidOnRequestFocus, androidOnReceivedIcon, androidOnReceivedTouchIconUrl, androidOnJsBeforeUnload, androidOnReceivedLoginRequest Android-specific webview events
• Added disableDefaultErrorPage Android-specific webview option
• Added isAvailable ChromeSafariBrowser static method
• Fixed "SFSafariViewController doesn't open like a native iOS modal" #403

BREAKING CHANGES

• Updated onCreateWindow, onJsAlert, onJsConfirm, onJsPrompt webview event
• Renamed OnCreateWindowRequest class to CreateWindowRequest