Take Node.js 0.8.21 into use

Open-webOS-DCO-1.0-Signed-off-by: Kimmo Valkonen <kimmo.valkonen@palm.com>
Open-webOS-DCO-1.0-Signed-off-by: Pekka Ropo <pekka.ropo@palm.com>

Change-Id: Idc10e2a62c028f7e9d5b93041b636dfbd84469ac