After playing for a while (70 or so turns), happily conquering the world, the screen randomly froze. After a few minutes I hit ctrl alt delete and retrieved the debug: http://pastebin.com/m1febf569
I happened at the end of a turn, nothing seemed to be different than normal, so I don't know what could be the cause. I'm hoping the answers in the debug. (there's a few errors at the end)
