Update ACKNOWLEDGEMENTS file.
Update ACKNOWLEDGEMENTS file.

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