v04.00.04
release build: v04.00.04 fix: remove all ES6 JS code when API <= 20 (Android 4.4 KitKat) implications: * JS Sandbox is disabled equivalent to: @flag noJsSandbox * window.GM is undefined because: window.Promise is undefined notes: * tested and confirmed to work in Android 4.4 KitKat * Android 5.0 and higher supports an upgradeable System WebView