Deadlock at playable/snow21-grumbel.xml

[Ingo Ruhnke]

In playable/snow21-grumbel.xml if directly at the start a left-walking
Pingu is turned into a climber, we will try to climb the obstacle at
the left and once he reached the top of it, the whole game will
deadlock, most likly since the while loop inside faller.cxx is never
ending.

-- 
WWW:      http://pingus.seul.org/~grumbel/ 
Games:    http://pingus.seul.org/~grumbel/gamedesigns/
JabberID: address@hidden 
ICQ:      59461927