Adjust JFreeChartWrapper to fix Serialization issue

Where am I able add some code to this addon-project or is somebody responsible able to review and maybe add my changes? I wrongly added them as a pull request to https://github.com/lepirlouit/jfreechart-wrapper-for-vaadin. Later I noticed, that it's just a google code copy...

Hi Karsten,

Make your pull request against this GIT repository:
https://github.com/mstahv/jfreechartwrapper

cheers,
matti
 

I also updated the directory link now to point to the new project page in github.

okay