Merge branch 'Dockerfile-ruby-2-3-git-2-7-phantomjs-2-1-node-7-1' into 'master'

Dockerfile.ruby-2.3-git-2.7-phantomjs-2.1-node-7.1

`ruby:2.3`

`git:2.7`

`phantomjs:2.1`

`node:7.1`

See merge request !17

Dockerfile.ruby-2.3-git-2.7-phantomjs-2.1-node-7.1

+FROM ruby:2.3
+
+ADD / /
+RUN /scripts/install-essentials
+RUN /scripts/install-phantomjs 2.1.1
+RUN /scripts/install-node
+
+RUN locale-gen en_US.UTF-8
+ENV LANG en_US.UTF-8
+ENV LANGUAGE en_US:en
+ENV LC_ALL en_US.UTF-8
\ No newline at end of file

scripts/install-node

+#!/bin/bash
+
+set -xeo pipefail
+
+curl --silent --location https://deb.nodesource.com/setup_7.x | bash -
+apt-get install -y nodejs
\ No newline at end of file