Updated template/node/Dockerfile to run function as the `app` user from the `home/app` directory.
Updated template/node/Dockerfile to run function as the `app` user from the `home/app` directory.

Signed-off-by: Austin Frey <318f414aed23742b8e487d62a8fa191e187e68b2@gmail.com>

itscaro/faas-cli,itscaro/faas-cli,itscaro/faas-cli