Fix errors in Vision examples.

Change-Id: I752a99ff7b8872a0fc8926e3633c2b521383bbd0

eclipse-plugins/edu.wpi.first.wpilib.plugins.cpp/resources/templates/examples/2015Vision/Retro_src/Robot.cpp

@@ -9,6 +9,8 @@
  * To use a USB camera instead, see the IntermediateVision example for details
  * on using the USB camera. To use an Axis Camera, see the AxisCamera example for details on
  * using an Axis Camera.
+ *
+ * Sample images can be found here: http://wp.wpi.edu/wpilib/2015/01/16/sample-images-for-vision-projects/ 
  */
 class VisionRetro2015Sample : public SampleRobot
 {
@@ -66,7 +68,7 @@ public:
 	void Autonomous() override {
 		while (IsAutonomous() && IsEnabled())
 		{
-			//read file in from disk. For this example to run you need to copy image.jpg from the SampleImages folder in this project to the
+			//read file in from disk. For this example to run you need to copy image.jpg from the SampleImages folder to the
 			//directory shown below using FTP or SFTP: http://wpilib.screenstepslive.com/s/4485/m/24166/l/282299-roborio-ftp
 			imaqError = imaqReadFile(frame, "//home//lvuser//SampleImages//image.jpg", NULL, NULL);