New resources, lumberjack and leaderboard!

Hello!

I've got a few more things done that will be available in the demo version once it releases:

New resources

I have added three new resources: Pottery, wood and wine!

Pottery can be produced by potteries in an industrial district, wine can be produced in a vineyard (which I also added) and wood is produced by the...

...Lumberjack

The lumberjack is a character you can add to your units. If your unit is in a forest, the lumberjack can chop would.

Leaderboard

Finally, I have added a leaderboard comparing different stats of the cities (funds, population, happiness...) to create a score and a ranking!

The next big thing for me to work on is automatization of computer-controlled cities - So far they're not really doing anything!