v0.9.0 Minor updates for release via Arduino library manager.

v0.9.0 No change in functionality from v0.8.0. Minor packaging changes to prepare for release via npm.

Simulataneous release with version 0.8 of Arduino Luni library.

LuniJS is a Javascript module that can be used with the firmata.js client module to talk to an Arduino running device drivers based on the Luni library.