library: fix DigiUSB#read to actually do the thing it says on the tin. Also now DigiUSB.connect shortcut for DigiUSB.sparks.last. Yay!
library: fix DigiUSB#read to actually do the thing it says on the tin. Also now DigiUSB.connect shortcut for DigiUSB.sparks.last. Yay!

Bluebie/digiusb.rb