add empty jni class
add empty jni class

readium/SDKLauncher-Android,msintov/SDKLauncher-Android,readium/SDKLauncher-Android,msintov/SDKLauncher-Android,msintov/SDKLauncher-Android,readium/SDKLauncher-Android,msintov/SDKLauncher-Android,readium/SDKLauncher-Android