Updated ACKNOWLEDGEMENTS file.
Updated ACKNOWLEDGEMENTS file.

makerbot/pyusb,swinman/pyusb,h3nj3/pyusb,AlanJAS/pyusb,karlp/pyusb,kopchik/pyusb,makerbot/pyusb,h3nj3/pyusb,kopchik/pyusb,rabryan/pyusb,swinman/pyusb,rabryan/pyusb,AlanJAS/pyusb,karlp/pyusb