Modding: "for every [countable]" unique modifier 

Added links to base ruleset template in docs

Fixed "don't allow era select" if the game has no techs

By SomeTroglodyte: 
- Support for Zulu language 

By tuvus:
- Clicking the spy button no longer allows the spy to be moved when it isn't their turn 
- Added the Espionage civilopedia entry 
- Construction automation rework 
- Espionage button cancels moving spy