added in the exponential gain for joystick axes
re-adjusted the exponential gain so that it works with negative inputs as well
fixed up formating i think
Changed the code os that there are no unused variables when getting the exponential
changed the code so that it in theory prints the values on the smart dashoard
Use updated lib4774 with nicer names and access.

Use correct address for MPU6050 on GY-521 board.