to user -> to use -- in second paragraph of Flashing over USB section
users stock stock -> uses stock -- in first paragraph of Flashing over I2C section
fiwmare -> firmware -- in second paragraph of Flashing over I2C section
I2C register layout changed a bit to make various operations easier
to implement in FW and for the user.
Flashing/debugging tools now share more code. Firmware is now more
configurable (it's now possible to compile-out various features).
Self-testing for column-shorts is implemented.
Firmware is optimized for low power consumption.