Branch length scales are wrong in unrooted mode

[GoogleCodeExporter]

Steps to reproduce problem:

1. Open up two identical trees with very different branch lengths
2. Switch each window view mode to "Unrooted"
3. Observe that the scales in the bottom left corners are approximately the 
same size
4. ... and that when you press +x the scale changes size, but the tree does not

I would expect to see that the scale is correct in the unrooted mode.

We're using Forester 1.027 (Acheopteryx .9812).

A fix for this would be awesome and greatly appreciated, as would a disclaimer 
somewhere in the mean time.

Thanks!

Original issue reported on code.google.com by metasoar...@gmail.com on 23 May 2013 at 9:36

[cmzmasek]

I will look into this.