Filename should not move when ball is arriving

[GoogleCodeExporter]

Hello,

Problem: When file names at right side of screen are updated, balls are now 
heading for unlabeled locations or wrong filenames.

Solution: Do not move filename if there is ball heading to it. Sometimes it is 
not possible becouse there is not enough space, but usualy it will work fine.

Original issue reported on code.google.com by [email protected] on 5 Feb 2011 at 11:31