Updated acknowledgments file.
Updated acknowledgments file.

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