Fix floor returning float in python2

Traceback (most recent call last):
  File "./ccs.py", line 261, in <module>
    CcsInteractive(players).cmdloop()
  File "/usr/lib/python2.7/cmd.py", line 142, in cmdloop
    stop = self.onecmd(line)
  File "/usr/lib/python2.7/cmd.py", line 221, in onecmd
    return func(arg)
  File "./ccs.py", line 181, in do_state
    pretty_print_games(self.players)
  File "./ccs.py", line 147, in pretty_print_games
    n=str(i + 1).rjust(len_players_col)
TypeError: integer argument expected, got float