ChangeLog: Merge cgminer to ckolivas's trunk(V4.5.0) Support p2pool(with MM Version: 331408-a15cac80) Fan speed auto adjust with new method,range support.(cgminer param: --avalon2-fan 50-100 or --avalon2-fan 50) Support hotplug usb cable by cgminer. Ignore blacklisted and zombie devices on luci status page.