Trackpad firmware update

[Arwen]

I've not yet installed the trackpad firmware, so "no comment" on any improvements. (Though they sound good.)

However, for the next version of the firmware, I'd suggest a way to get a version number out of it. And maybe even 2 dates. The date firmware was compiled and date it was installed. (The dates can simply be 32 bit numbers, seconds from Unix Epoch, or 2000/01/01 00:00, if it's easier to not have ASCII text dates.)

Of course, I am a perfectionist..