Bump version number to 2.1.2

library.properties

@@ -1,5 +1,5 @@
 name=Adafruit MPL3115A2 Library
-version=2.1.0
+version=2.1.2
 author=Adafruit
 maintainer=Adafruit <info@adafruit.com>
 sentence=Arduino library for the MPL3115A2 sensors in the Adafruit shop