BF2 - Twin Bitfury USB miner driver added
BF2 driver comment edited
Renamed bf2 driver -> twinfury driver
bin2hex utility used to convert the serial number
LED flashing changed:
- setting a flag and flash the LED during the poll cycle
- mutex removed
Twinfury communication protocol changed to be more robust. A
preamble is sent before the actual command.
Merge pull request #329 from aauer1/bf2

BF2 - Twin Bitfury USB miner driver