French Translation WC2.0RC2
Merge pull request #2527 from absoluteweb/master

100% french version by ABSOLUTE Web WC 2.0 RC2
Prevent naming conflict Closes #2530.
Split out fragment code into wc-cart-fragments Closes #2528
Remove, don't hide. Closes #2532.
Slugs are unreliable, and support show_if hide_if for all product types