NCBC-726: Ensure ViewDataMapper uses configured serializer settings

This patch changes the behavior of the JsonDataMapper, which is used by
the ViewClient, so that it uses the JsonSerializationSettings defined by
the ClientConfiguration object.

Change-Id: I508839a32a5eb528d8ee8fa661b7cdaa7d75c3c7
Reviewed-on: http://review.couchbase.org/43585
Reviewed-by: Jeffry Morris <jeffrymorris@gmail.com>
Tested-by: Jeffry Morris <jeffrymorris@gmail.com>