As stated in the previous anonymous comment, the code was contributed by the gendarmerie (military police), which is quite tech savvy and has a long history of using and advocating open source solutions. They previously switched all their office software to OpenOffice.org in 2005, and are currently migrating most of their Windows workstations to Ubuntu.
But this effort is not so widespread ; there are both successes (like the budget and public accounting administration recently migrating from Outlook and Notes to Thunderbird and OBM groupware) and failures, like the whole educational field, which is basically a mess. There are some isolated efforts to promote free software and open standards, but due to a lack of strong political willpower, huge lobbying from Microsoft, and general incompetence and disinterest about IT, teachers, students and administrative staff are usually stuck with proprietary (and often obsolete) solutions.
There has been some recent effort to officially define open formats and standards and to enforce their use across the whole French administration (http://www.april.org/fr/rgi), but it was mostly thwarted by Microsoft using some FUD and promoting their pseudo-open OOXML format.
I think we can say that more and more IT people in the French administration are aware than FOSS is a real and worthy alternative, but the battle is far from won.