Pontoon: Update Dutch (nl) localization of MDN
Pontoon: Update Dutch (nl) localization of MDN

Localization authors:
- Ton <tonnes.mb@gmail.com>

escattone/kuma,Elchi3/kuma,SphinxKnight/kuma,jwhitlock/kuma,yfdyh000/kuma,jwhitlock/kuma,a2sheppy/kuma,yfdyh000/kuma,escattone/kuma,SphinxKnight/kuma,safwanrahman/kuma,safwanrahman/kuma,ollie314/kuma,a2sheppy/kuma,escattone/kuma,safwanrahman/kuma,ollie314/kuma,mozilla/kuma,SphinxKnight/kuma,ollie314/kuma,safwanrahman/kuma,ollie314/kuma,mozilla/kuma,safwanrahman/kuma,mozilla/kuma,jwhitlock/kuma,SphinxKnight/kuma,a2sheppy/kuma,jwhitlock/kuma,Elchi3/kuma,a2sheppy/kuma,SphinxKnight/kuma,safwanrahman/kuma,a2sheppy/kuma,Elchi3/kuma,mozilla/kuma,yfdyh000/kuma,yfdyh000/kuma,Elchi3/kuma,yfdyh000/kuma,jwhitlock/kuma,mozilla/kuma,SphinxKnight/kuma,Elchi3/kuma,ollie314/kuma,yfdyh000/kuma,ollie314/kuma