Merge pull request #40 from Yanchek99/master

Bumping Ruby to stay current with the latest stable

Author: yosifkit

Dockerfile

@@ -1,4 +1,4 @@
-FROM ruby:2.2
+FROM ruby:2.3
 
 # see update.sh for why all "apt-get install"s have to stay as one long line
 RUN apt-get update && apt-get install -y nodejs --no-install-recommends && rm -rf /var/lib/apt/lists/*

onbuild/Dockerfile

@@ -1,4 +1,4 @@
-FROM ruby:2.2
+FROM ruby:2.3
 
 # throw errors if Gemfile has been modified since Gemfile.lock
 RUN bundle config --global frozen 1

update.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 set -e
 
-rubyBase='2.2'
+rubyBase='2.3'
 rubyOnbuildDockerfile="https://raw.githubusercontent.com/docker-library/ruby/master/$rubyBase/onbuild/Dockerfile"
 
 current="$(curl -sSL 'https://rubygems.org/api/v1/gems/rails.json' | sed -r 's/^.*"version":"([^"]+)".*$/\1/')"