GRIP Java code generation and blob detection

Hi all:

We had an issue where image processing, specifically blob detection, using generated java code from GRIP did not match what was shown in the GRIP GUI. Digging into OpenCV and GRIP we found https://github.com/WPIRoboticsProjects/GRIP/issues/811

If you are using a version of GRIP from before the fix, you will need to fix the generated source as per the notes in the issue.

To clarify, this was fixed with version 1.5.2.

Thanks btw for the really fast fix!