JavaGP build files fixed

Thanks to input from the community, we have found out that the build scripts for JavaGP were not correct and the generated release was not easy to run. We have now fixed these issues and included a basic README file for the binary distribution of JavaGP. Enjoy the new release, and thanks to Imad and Ben for their input.

JavaGP Released

We have just released the source code and the binaries for the first beta of the Java version of our Graphplan implementation. Download it and let us know of any bugs or improvements.