* "[+1 Gold] for each adjacent [Road]" Roadstatus can be used now in tile improvement uniques
* Added hasViewableResource check to "[stats] from every [Resource]"
* Fixed translation of nation uniques
* Eras with no researchable techs will not appear in dropdown menu in new game options
* Implemented startingUnits, aiMajorCivStartingUnits and aiCityStateStartingUnits fields in difficulty
* reassignRemovedModReferences will also reassign if nation is a City-State in current ruleset
e.g. Venice will be unselected if player unselects Civ5ExpansionMod which has it as playable civ
* "Cannot be purchased" - new unique for non-wonders and units. SS parts have it
* Update template.properties
* Update Difficulty.kt
