[scribus] Beware 1.5.2 trunk

[JLuc]

CTL Complex Script Layout big patch has been merged into svn trunk.
This is big news since it will enable more langage writings
to use scribus, and it might also help fix some long lasting
layout issues.

It's necessary to test it thoroughfully and report any issues.

On the other hand, those who wish to use the latest long tested
and approved version, before benefiting or latest CTL new scribus
ought to stick to release r21098
If you use maksvn script, you can get that version with following command :
maksvn -r 21098

JLuc