Verdant Village Hotfix 0.18.4

Last time this weekend I promise. A user kindly pointed out that despite having titanium and a mithril tool Sven still refused to upgrade it for him. Turns out past me never actually set up the variables for upgrading past mithril, typical lazy past me. This issue should be fixed now. I figured it was a large enough problem to warrant its own patch now that you can obtain titanium.