WP 34S and 31S bugs and fixes

[Paul Dale]

The firmware forces SLOW mode if the battery is below a certain threshold. I guess it would be possible to slow it down even more but there is a point at which it would become unbearable.

As an aside, there were a couple of times during development where the clock had been slowed to 32kHz and wasn't sped up properly. This made the device unbearably slow.


Pauli