Support for French

Thanks to [Olivier Laviale](https://github.com/olvlvl) of
[ICanBoogie](https://github.com/ICanBoogie/Inflector)

Signed-off-by: David Celis <me@davidcel.is>

Conflicts:
	lib/inflections.rb

Signed-off-by: David Celis <me@davidcel.is>