Due to website configuration changes, every url starting with http://arduino.cc has been changed to http://www.arduino.cc. Fixes #3191

Author: Federico Fissore

README.adoc

@@ -3,7 +3,7 @@
 The Robot has a number of built in sensors and actuators. The library is designed to easily access the robot's functionality.
 
 For more information about this library please visit us at
-http://arduino.cc/en/Reference/RobotLibrary
+http://www.arduino.cc/en/Reference/RobotLibrary
 
 == License ==
 

library.properties

@@ -5,5 +5,5 @@ maintainer=Arduino <info@arduino.cc>
 sentence=Enables easy access to the motors of the Arduino Robot Motor board. For Arduino Robot only.
 paragraph=
 category=Device Control
-url=http://arduino.cc/en/Reference/RobotLibrary
+url=http://www.arduino.cc/en/Reference/RobotLibrary
 architectures=avr