Civilization The Board Game, next version

Introduction
I deployed a new version of my computer implementation of  Civilization The Board Game. The implementation consists of three parts:

• Civilization Engine 
• Civilization Web Interface
• Demo. Demo version is deployed to Heroku, free quota. Please wait several minutes unless the dyno is brought back to life.

New features implemented

• Great Persons, only resources augment is implemented, not Great Person card abilities
• Event Card, cards only, events are not implemented

Great Person

While advancing on culture track, the player is receiving Great Person.

The Great Person can be placed immediately on the map or can be held in reserve and placed on the map later during Start Of Turn phase.

After placing the Great Person on the map, its resource capabilities augment the capacity of the adjacent city.

You are welcome, Great General!

Culture Cards
Culture Cards are collected (like Great Persons) during advancing in culture. Culture Cards Events are not implemented yet.

If a number of Culture Cards exceeds the size of the hand, the players should reject one of the cards.
Next steps
Capabilities of civilizations.