Add !evolution command (#63)

* Add !evolution to auto-chat.lua

* Add !evolution to chat-bot.cfg

* Fixed syntax error and converted to two decimal places

Addons/Admin/auto-chat.lua

@@ -44,6 +44,7 @@ local commands = {
     ['aids']={'chat-bot.aids'},
     ['riot']={'chat-bot.riot'},
     ['lenny']={'chat-bot.lenny'},
+    ['evolution']=function(player) return {'chat_bot.current-evolution',string.format('%.2f',game.forces['enemy'].evolution_factor)} end,
     --Jokes about food and drink
     ['whattoeat']={'chat-bot.food'},
     ['makepopcorn']=function(player) Server.new_thread{