Should not run apt upgrade in Dockerfil

[fguitton]

As much as possible it is recommended not to use apt upgrade while building Docker images.
https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#run

eae-compute/DockerHub/Dockerfile

Lines 1 to 5 in f5ae634

	# Select source image
	FROM node:wheezy@sha256:4e94d7eab2c3c8c59647b534699c32c5cbcdce371e70eb314c2d056922b2a2f1
	# Install all dependencies
	RUN apt-get update -q && apt-get upgrade -y --no-install-recommends

eae-compute/test/Dockerfile

Lines 1 to 10 in f5ae634

	# Select source image
	FROM node:wheezy
	# Install all dependencies
	RUN apt-get update -q \
	&& apt-get upgrade -y --no-install-recommends \
	&& apt-get install -y python-pip \
	&& apt-get install -y python3 \
	&& apt-get install -y python3-pip \
	&& apt-get install -y r-base