fixed major bug in the '/trolltutorial' command, which prevented to start the tutorial for more than 1 person at a time. This bug affected both english and the german version.
fixed a bug that prevented the usage of picking a player after using '/troll', when the troll-tutorial had been started before
added '/trolltutorial stop' command to stop the tutorial while it's running
changed the color of some messages in the '/trolltutorial' command