I have 2 questions. 1. You say this is not production ready but when I look at the Tronix contract it seems to be less in depth than this tutorial. What would an example of a production ready contract look like? Or what would it need to have? Are we simply talking about Unit Testing here? 2. In the Tronix contract one of the few differences was they set address owner = 0x0;. Do you have any idea what that means? 0x0? Please see my question on Stack Exchange - ethereum.stackexchange.com/questions/37030/what-i…