OicClient: Fix jshint warnings.
OicClient: Fix jshint warnings.

zqzhang/iotivity-node,zolkis/iotivity-node,zqzhang/iotivity-node,zolkis/iotivity-node,zolkis/iotivity-node,zolkis/iotivity-node,zolkis/iotivity-node,zqzhang/iotivity-node,zqzhang/iotivity-node,zqzhang/iotivity-node