First of all, thank to show your interest for my project. I know my license is really far to be good and I don't very appreciate that. At the beginning it was the only way that I find to protect my project. I will take your advice and I will change for an open-source license.
I know decompiling the jar doesn't count like documentation. I'm currently writing the documentation for the project. I will update the post when it will be ready to use for the devs.