v3.1

Bump version

v3.0

Updated to Pi4J 2.0

v2.0

Refactor to use a single SSD1306 class

SPI and I2C communication are now handled by implementations of a Transport interface, which the SSD1306 object is passed.

v1.5

Remove these references to SPI

v1.4

Update license

v1.3

Initial release.