Handling of xml2po based docs translations like the italian

[Frank H. Ellenberger]

... continuation:

http://code.gnucash.org/docs/it/gnucash-guide/gnc-gloss.html
shows another limit beneath the mixture of Italian expressions with
English explanations.

The alphabetical order of Italian glossary entries would not be the same
as the English. I don't know, if there is a trick like some XSLT to get
them in the right order.

~Frank