Updated docker stuff

rails-dev-Dockerfile

@@ -0,0 +1,20 @@
+FROM ruby:2.2.3
+
+RUN apt-get update
+RUN apt-get -y upgrade
+
+RUN apt-get update && apt-get upgrade -y && apt-get install -y build-essential
+RUN apt-get install -y nodejs sqlite3
+
+RUN gem install --no-rdoc --no-ri bundler
+RUN mkdir /rails
+WORKDIR /rails
+VOLUME ["/rails"]
+
+ADD Gemfile* /rails/
+RUN bundle install --without production
+ADD . /rails/
+
+EXPOSE 3000
+
+CMD /bin/bash