Enable survey in Dutch

Related core change: Ic5892e29c6e64d0d015e8b6037c402c42ea1c7d5

Change-Id: I5f939f98f8654c3fd90bcfae1b28fec262da8332
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/545
(cherry picked from commit bbe3429f3858f70fee8b481c302a991004722667)
Merge "Enable survey in Dutch" into wmf/1.24wmf2