Change of category name from FLOSS to Libre

This will probably break a few things out there, but I am changing the category name for Free/Libre Open Source Software to simply « Libre » which means Free in both french and spanish. I’m doing this because I find myself wanting to write a lot more about other « libre » stuff like open standards and formats, copyright and intellectual property, and of course open house parties 🙂 FLOSS doesn’t seem to be a very friendly acronym either.