Merge pull request #11 from ls612/Ea

River Connection DLL Support
Allow negative building happiness
Merge pull request #12 from ls612/Ea

Happiness From Lua
Unhappy fix
Merge pull request #13 from ls612/Ea

Speculative fix for the errors with free buildings granted by traits.
Merge pull request #14 from ls612/Ea

Hotfix d DLL changes
Merge pull request #15 from ls612/Ea

Cumulative DLL hotfixes
Merge branch 'Ea' of https://github.com/Pazyryk/EaDLL into Ea