Adds french translation

I've done the french translation for the Regulations and Guidelines, and I would like to add them to the wca-documents (some rewiews and typo corrections are likely to be made, but the main work is done).
Some questions :
- What should I do with the "translation-french" from my fork of 'wca-documents' ?
- Shouldn't the travis build get the latest translations from their repositories ? If the repository is deleted it should be fine since the branch already exists in 'wca-documents' (except for the french one of course).