On linux, if upgrading node to v9, usb won't build

[aril-spetalen]

blinkstick works well with node 8, but stops building when bumping to node 9.
By depending on usb 1.1.1 or higher, it's fixed.
(There's a deprecated dependency in usb 1.1.1, so on linux with node 9, we need 1.3.1.)

#32 fixes the issue :-)

[aril-spetalen]

(For my own dependent project to work, I published a blinkstick-n9 to npm, which may be used until this is resolved on master).