wry@0.31.0

e47562f(#993) Update the unmaintained kuchiki crate to the maintained kuchikiki crate.
7a353c7(#980) Add WebViewBuilder::with_on_page_load_handler for providing a callback for handling various page loading events.
b0a08b1(#997) Update tao to version 0.22 which has removed the global-shortcut, menus and tray features, see tao@v0.22 release.