`init` method resets ranges

[anti-social]

There are constructors that allow to set accelerometer and gyro ranges: new_with_sens and new_with_addr_and_sens. But an init method resets the ranges to AccelRange::G2 and GyroRange::D250: init

It looks strange for me as how I can understand init is required to be called. If it is true then the constructors do not make sense at all.