Moved libraries folder inside platform folder. Now libraries and examples are searched per board/platform

libraries/Stepper/examples/MotorKnob/MotorKnob.ino

@@ -1,41 +0,0 @@
-/*
- * MotorKnob
- *
- * A stepper motor follows the turns of a potentiometer
- * (or other sensor) on analog input 0.
- *
- * http://www.arduino.cc/en/Reference/Stepper
- * This example code is in the public domain.
- */
-
-#include <Stepper.h>
-
-// change this to the number of steps on your motor
-#define STEPS 100
-
-// create an instance of the stepper class, specifying
-// the number of steps of the motor and the pins it's
-// attached to
-Stepper stepper(STEPS, 8, 9, 10, 11);
-
-// the previous reading from the analog input
-int previous = 0;
-
-void setup()
-{
-  // set the speed of the motor to 30 RPMs
-  stepper.setSpeed(30);
-}
-
-void loop()
-{
-  // get the sensor value
-  int val = analogRead(0);
-
-  // move a number of steps equal to the change in the
-  // sensor reading
-  stepper.step(val - previous);
-
-  // remember the previous value of the sensor
-  previous = val;
-}