Gridworld released!

Hi everyone!

I am happy to announce that gridworld has been finally released. Thanks to everyone who supported me on greenlight, you guys are great! I have had a lot of fun working on this project and I hope people will have fun running simulations. If you have questions, bugs to report or problems, feel free to go to the forums. I will continue to support this project and will make updates from time to time.

Thank you.