SquidLord

-- This library provide high level turtle movement functions.
--
-- Before being able to use them, you should start the GPS with egps.startGPS()
--    then get your current location with egps.setLocationFromGPS().
-- egps.forward(), egps.back(), egps.up(), egps.down(), egps.turnLeft(), egps.turnRight()
--    replace the standard turtle functions. 
-- If you need to use the standard functions, you
--    should call egps.setLocationFromGPS() again before using any egps functions.

-- Gist at: https://gist.github.com/SquidLord/4741746