Upgrade nodejs runtime in Refkit to v5.11, current nodejs version in Refkit is v4.5.0.
nodejs got updated in meta-iot-web, but waiting for dependent iotiviy, iotivity-node package updates in meta-iot-wec, so that we can pull together in refkit.
PR submitted: https://github.com/intel/intel-iot-refkit/pull/183
Now nodejs version updated to 6.11 in refkit .