AI will not declare war if it definitely can't take a city 

Civilooedia from mainmenu  - By SomeTroglodyte

Rate limit handling for Dropbox  - By GGGuenni

By OptimizedForDensity:
- Use ranged strength when defending against ranged attacks 
- Hide cities where wonders are built until city is explored 

By xlenstra:
- Fixed "improvements could no longer be built by workers" bug
- Fixed "roads seemingly remove improvements" bug 

Hexarealm tileset added to base game - By GeneralWadaling