some minor cleanup to the arduino utils.  changing default path for ide install, adding notes in javadoc format.
some minor cleanup to the arduino utils.  changing default path for ide install, adding notes in javadoc format.

MyRobotLab/myrobotlab,MyRobotLab/myrobotlab,MyRobotLab/myrobotlab,MyRobotLab/myrobotlab,MyRobotLab/myrobotlab,MyRobotLab/myrobotlab,MyRobotLab/myrobotlab