Create Dockerfile for wetty

Dockerfile

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+FROM node
+MAINTAINER Nathan LeClaire <nathan@docker.com>
+
+ADD . /app
+WORKDIR /app
+RUN npm install
+RUN apt-get update
+RUN apt-get install -y vim
+RUN useradd -d /home/term -m -s /bin/bash term
+RUN echo 'term:term' | chpasswd
+
+EXPOSE 3000
+
+ENTRYPOINT ["node"]
+CMD ["app.js", "-p", "3000"]