Bump to 1.5.3

Bump to 1.5.2

Bump to 1.5.1

Merge pull request adafruit#110 from caternuson/misc_fixes

Change gyro units and fix gravity sensor type

Bump to 1.4.3

Bump to 1.4.2

Bump to 1.4.1

Merge pull request adafruit#93 from ulysse314/addingotherdata

Adding magnetometer, accelerometer and gravity data

Update library.properties

bumped version for release