Change version to 1.2.1

Change version to 1.2.0

Move PID control to the IMU callback

Feature: Move core (PID) balancing control to the IMU callback
 >
 This removes a source of timing inaccuracies stemming from an arbitrary
 delay between a new IMU sample arriving and being used.

Change version to 1.2.0-beta4

Change version to 1.2.0-beta3

Increase version to 1.1.2

Change version to 1.2.0-beta2

Update readme for 1.2

Reorganize Pushback Alerts and Haptic Feedback config options

Take the new Speed Pushback into account and clean up some descriptions.

Bump version to 1.1.1