[info-mcl] Updated Twist-Down contrib

[Terje Norderhaug]

I have updated the Twist-Down contribution for (R)MCL 5.2.x:

    http://code.google.com/p/mcl/source/detail? 
r=3c43c6fa0f6deb2d5e36f4d03dfbbbf6feb58e6c

Twist-Down views display a hierarchy similar to the Finder's listing  
of files: As an outline or a single-column tree where the user can  
disclose lower levels in the hierarchy by clicking a triangle.

-- Terje Norderhaug
   terje at in-progress.com