Small dutch translation fix
Small dutch translation fix

Updated dutch message:
De gebruiker mag een afbeelding.
into:
De gebruiker mag een afbeelding toevoegen.
forkcms/forkcms,jeroendesloovere/forkcms,jessedobbelaere/forkcms,vytenizs/forkcms,DegradationOfMankind/forkcms,mathiashelin/forkcms,jessedobbelaere/forkcms,wengyulin/forkcms,Katrienvh/forkcms,jeroendesloovere/forkcms,vytenizs/forkcms,riadvice/forkcms,DegradationOfMankind/forkcms,WouterSioen/forkcms,jacob-v-dam/forkcms,jessedobbelaere/forkcms,justcarakas/forkcms,mathiashelin/forkcms,carakas/forkcms,lowiebenoot/forkcms,dmoerman/forkcms,vytsci/forkcms,matthiasmullie/forkcms,mathiashelin/forkcms,jacob-v-dam/forkcms,bartdc/forkcms,Katrienvh/forkcms,carakas/forkcms,Saxithon/gh-pages,nosnickid/forkcms,vytsci/forkcms,wengyulin/forkcms,carakas/forkcms,carakas/forkcms,WouterSioen/forkcms,jacob-v-dam/forkcms,jonasdekeukelaere/forkcms,dmoerman/forkcms,dmoerman/forkcms,sumocoders/forkcms,bartdc/forkcms,DegradationOfMankind/forkcms,vytsci/forkcms,Thijzer/forkcms,ikoene/forkcms,wengyulin/forkcms,nosnickid/forkcms,jonasdekeukelaere/forkcms,forkcms/forkcms,matthiasmullie/forkcms,sumocoders/forkcms,jeroendesloovere/forkcms,sumocoders/forkcms,tommyvdv/forkcms,tommyvdv/forkcms,sumocoders/forkcms,forkcms/forkcms,Thijzer/forkcms,jessedobbelaere/forkcms,riadvice/forkcms,riadvice/forkcms,nosnickid/forkcms,tommyvdv/forkcms,Thijzer/forkcms,jacob-v-dam/forkcms,forkcms/forkcms,bartdc/forkcms,riadvice/forkcms,lowiebenoot/forkcms,jeroendesloovere/forkcms,carakas/forkcms,ikoene/forkcms,ikoene/forkcms,DegradationOfMankind/forkcms,sumocoders/forkcms,jonasdekeukelaere/forkcms,matthiasmullie/forkcms,justcarakas/forkcms,Saxithon/gh-pages,jonasdekeukelaere/forkcms,Katrienvh/forkcms,tommyvdv/forkcms,mathiashelin/forkcms,jonasdekeukelaere/forkcms,justcarakas/forkcms,Katrienvh/forkcms,vytenizs/forkcms