Shevchik/TNTRun — pull request #1 by greeny (2013-10-23 08:51:47+00:00)
Title: Added player counting

I implemented sign counter

Features:
- on 4th line of sign is now dislplayed "X/Y" or "Game in progress" or "Disabled"
- if you place a redstone lamp one block up from the block on which the sign is placed, it will light when player cant join arena

Warning:
- all signs should be destroyed and created again to proper handling