Add Dockerfile and .dockerignore.

.dockerignore

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+.dockerignore
+Dockerfile
+
+*.md
+
+.git*
+.cvs*
+.hg*

Dockerfile

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+FROM ubuntu:16.04
+
+ARG FREETZ_SVN_URL=http://svn.freetz.org/trunk/
+ARG FREETZ_REVISION=14233
+
+RUN apt-get update \
+  && apt-get install -y \
+    autoconf \
+    automake \
+    binutils \
+    bison \
+    bzip2 \
+    ecj \
+    fastjar \
+    flex \
+    g++ \
+    gawk \
+    gcc-multilib \
+    gettext \
+    git \
+    graphicsmagick \
+    intltool \
+    lib32ncurses5-dev \
+    lib32stdc++6 \
+    libacl1-dev \
+    libc6-dev-i386 \
+    libcap-dev \
+    libncurses5-dev \
+    libreadline-dev \
+    libstring-crc32-perl \
+    libtool-bin \
+    libtool \
+    libusb-dev \
+    make \
+    patch \
+    perl \
+    pkg-config \
+    python \
+    realpath \
+    ruby \
+    ruby1.8 \
+    subversion \
+    texinfo \
+    tofrodos \
+    unzip \
+    zlib1g-dev \
+  && apt-get clean \
+  && rm -rf \
+    /tmp/* \
+    /var/lib/apt/lists/* \
+    /var/tmp/*
+
+# Install freetz source tree
+WORKDIR /freetz
+RUN svn checkout -r "${FREETZ_REVISION}" "${FREETZ_SVN_URL}" .