Beta 2015.09.01

This new beta is the one to become the release version in a couple of days.

The main addition to it is this option...

I think the balance between the 3 levels (easy, normal, hard) is good enought, but if it's not, just let me know and I'll try to rebalance it. Balancing an AI is a really hard task :)

By the way, if you ever wonder why the game version is numbered like that (2015.09.01)... it's not that I've released lots of versions (like someone said one day). It's just the release date :)