Base Dockerfile for OrbitDB

This commit introduces a Dockerfile for building Docker images of OrbitDB
base installations on node.js. It is based on official nodejs image, and
can also be used either as a base image for building new images for
projects that use OrbitDB, or as image for throwaway temporary containers.

docker/Dockerfile

@@ -0,0 +1,14 @@
+FROM node:carbon
+
+ENV NPM_CONFIG_PREFIX=/home/node/.npm-global
+
+WORKDIR /home/node
+USER node
+
+COPY package.json ./
+COPY examples/ ./examples
+COPY src/ ./src
+COPY conf/ ./conf
+
+RUN npm install babel-cli webpack \
+ && npm install