Added chat functionallity making the bot able to send messages to the game...

Added chat functionallity making the bot able to send messages to the game chat for everyone to see. Used by calling self.send_chat().

docs/idabot.rst

@@ -55,6 +55,10 @@ IDABot
 
       Returns the players race, useful if you play Race.Random
 
+   .. method:: IDABot.send_chat(self, message)
+
+      Sends the string 'message' to the game chat
+
    Attributes:
 
    .. autoattribute:: minerals