* Enable i18n in KoboUSBMS
* Rejig the "No confirmation" USBMS setting:
In now *only* affects the USB plug in event.
The menu entry will never show the popup (clicking on it should already
be confirmation enough, that, yes, we really would like to do that,
please ;)).
Also, enable said plug in behavior on Cervantes, too ;).
* Add an option to disable USBMS entirely
* Bump base
https://github.com/koreader/koreader-base/pull/1170