[scribus] Improved jujstification.

[John Culleton]

This article states that various improvements in justification have 
been borrowed from pdftex starting with 1.3.4.  My question is: how do 
I activate these extensions in e.g.1.3.9 or even 1.5.0?
http://wiki.scribus.net/canvas/Better_Justification_in_1.3.4
-- 
John Culleton, 
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