[Scribus] font browsing

[bart at solozone.com]

the plug-in from petr at yarpen.czwaits for opening a document because EXTRA (where it is) is greyed out until such is opened.
But... one should be able to browse what the fonts look like even BEFORE any doc is opened, no?

The other preview, the python script, should have a choice for point size(s) to be shown, imho. I manually edited the *.py but lost the titles (:-(. 
need a choice dialog, please.

I show 589 fonts speedily. good!

bart at solozone.com