Combining with "patch" branch (#29)

* Update unobot.po

* Update test_player.py

* Update test_player.py

* Update test_player.py

* Update test_player.py

* Update player.py

* Update player.py

* Update internationalization.py

* Update internationalization.py

* Update test_player.py

* Update test_player.py

* Update test_player.py

* Update player.py

* Update player.py

* Update player.py

* Update test_player.py

* Update test_player.py

* revert play 4 then 4 rule

* Update test_player.py

* Update player.py

* Update player.py

* Update player.py

* Update game.py

* Update game_manager.py

* Update game_manager.py

* Update game_manager.py

* Update player.py

* Update test_player.py

* Update player.py

* Update bot.py

* Update credentials.py

* Update credentials.py

* Update bot.py

* Update game.py

* Update game_manager.py

* Update game_manager.py

* Update player.py

game_manager.py

@@ -19,6 +19,7 @@
 
 
 import logging
+import random
 
 from game import Game
 from player import Player
@@ -77,7 +78,8 @@ class GameManager(object):
         # Don not re-add a player and remove the player from previous games in
         # this chat, if he is in one of them
         for player in players:
-            if player in game.players:
+            # Try to pervent someone win or leave then join again.
+            if player in game.players or user.id in game.joined_before: 
                 raise AlreadyJoinedError()
         else:
             try:
@@ -93,8 +95,14 @@ class GameManager(object):
                 players = self.userid_players[user.id]
 
         player = Player(game, user)
-
-        players.append(player)
+        
+        # Randomize player position.
+        game.joined_before.append(user.id)
+        if len(players) > 2:
+          players.insert(random.randrange(len(players)), player)
+        else:
+          players.append(player)
+                       
         self.userid_current[user.id] = player
 
     def leave_game(self, user, chat):