Update COPYRIGHT.txt

updating year in copyright
Update CONTRIBUTORS.txt

adding manu into contributors
Fix french translation
Merge pull request #214 from apachot/master

Update contributors list
Merge pull request #215 from enurit/patch-4

Fix french translation
Merge pull request #216 from lovenunu/master

Fix Coupon RemoveXPercent missing round
fix "informations" typo. Fix #100
[Front office] Modifying upsell products

Display off upsell products is now based on accessory loop but not promo products
[Front office] Modifying upsell products

Display of upsell products is now based on accessory loop but not promo products
[Front office] Modifying upsell products

Display off upsell products is now based on accessory loop but not promo products
[Front office] Modifying upsell products

Adding limit 3 + random order on loop accessory
[Front office] Modifying upsell products

Fixing $ID in some loops
modify the smarty syntax
Merge pull request #221 from enurit/patch-5

[front office] Modifying upsell products popup
remove repeated order by on lang loop
fix missing use statement in module class generated. Close #222
[Front office] Fixing list product

Last commit was a mistake, this is the correct file
Merge pull request #223 from enurit/patch-6

[Front office] Fixing list product
fix updating product quantity in cart
[front office] adding promotion price on select 

missing select