1.0.5 - build 2014.05.14

- Bug fixes:
– Fix to St Helena scenario to add paper trading
– Fix for the Civic Leader achievement which wasn't triggering
– Fix for road-related warnings

- Sandbox changes:
– Added a new "boundless" city size, where the city takes up the entire visible area
– Tweaked metal distribution to be more generous

- Sandbox trade bug fixes:
– neighbors don't offer to buy resources that you can't produce
– neighbors don't offer to sell you resources that you can't use (like gold)
– removed duplicate resources from buy/sell offers