2013-11-20: 2.0.0 (3c8f2a9) - Initial version 2014-03-27: 2.0.1 (6be1369) - Add bit banged I2C clear bus in constructor 2015-04-14: 2.0.2 (06c81f6) - Show initial counter value - Don't strip final zero if counter value is zero - Turn all segments off on startup