Update MainScreen.py
Merge pull request #46 from mreist/MaxxTesting

Update MainScreen.py
Update MainScreen.py

Removing conflicts. Multiple OptionButton.pos Declarations
Update Garage.py
Update LeaderBoard.py
Added animation for moving up and down

Now animating moving up and down on track with button press (up down)
Added bounds to moving vehicle

Vehicle will no longer more more than one "space" above or below origin.
Each movement is y +/- 100
Merge remote-tracking branch 'origin/master' into Jay