Add Dockerfile.dev for building a standard develop environment

paddle/scripts/docker/Dockerfile.dev

+FROM ubuntu:16.04
+MAINTAINER PaddlePaddle Authors <paddle-dev@baidu.com>
+
+ARG DEBIAN_FRONTEND=noninteractive
+ARG UBUNTU_MIRROR
+RUN /bin/bash -c 'if [[ -n ${UBUNTU_MIRROR} ]]; then sed -i 's#http://archive.ubuntu.com#${UBUNTU_MIRROR}#g' /etc/apt/sources.list; fi'
+
+RUN apt-get update \
+    && apt-get install -y cmake libprotobuf-dev protobuf-compiler git \
+    libgoogle-glog-dev libgflags-dev libgtest-dev \
+    libatlas-dev libatlas3-base g++ m4 python-pip \
+    python-protobuf python-numpy python-dev swig openssh-server \
+    wget unzip python-matplotlib tar xz-utils bzip2 gzip coreutils \
+    sed grep graphviz libjpeg-dev zlib1g-dev doxygen \
+    clang-3.8 llvm-3.8 libclang-3.8-dev clang-format-3.8 clang-tidy-3.8 \
+    && apt-get clean -y
+RUN cd /usr/src/gtest && cmake . && make && cp *.a /usr/lib
+RUN pip install -U BeautifulSoup docopt PyYAML pillow \
+    sphinx sphinx_rtd_theme recommonmark jupyter
+
+ARG WITH_AVX
+ARG WITH_DOC
+ARG WITH_SWIG_PY
+ARG WITH_STYLE_CHECK
+
+ENV WITH_GPU=OFF
+ENV WITH_AVX=${WITH_AVX:-ON}
+ENV WITH_DOC=${WITH_DOC:-ON}
+ENV WITH_SWIG_PY=${WITH_SWIG_PY:-ON}
+ENV WITH_STYLE_CHECK=${WITH_STYLE_CHECK:-OFF}
+
+RUN echo 'export LD_LIBRARY_PATH=/usr/lib64:${LD_LIBRARY_PATH}' >> /etc/profile
+
+# Configure OpenSSH server. c.f. https://docs.docker.com/engine/examples/running_ssh_service
+RUN mkdir /var/run/sshd
+RUN echo 'root:root' | chpasswd
+RUN sed -ri 's/^PermitRootLogin\s+.*/PermitRootLogin yes/' /etc/ssh/sshd_config
+RUN sed -ri 's/UsePAM yes/#UsePAM yes/g' /etc/ssh/sshd_config
+EXPOSE 22
+
+# Jupyter Notebook directory.
+RUN mkdir /notes/
+WORKDIR "/notes"
+EXPOSE 8888
+
+RUN mkdir -p /opt/bin
+COPY ./paddle/scripts/docker/entrypoint /opt/bin/