Add initial Dockerfile

From hotosm#980

Dockerfile

@@ -0,0 +1,46 @@
+FROM python:2.7.12
+
+RUN apt-get update \
+    && apt-get install -y \
+    --no-install-recommends \
+        libgeos-dev \
+        software-properties-common \
+        python-software-properties \
+        transifex-client \
+        wget \
+    && apt-get clean \
+    && apt-get autoremove \
+    && rm -r /var/lib/apt/lists/*
+
+RUN add-apt-repository "deb http://apt.postgresql.org/pub/repos/apt/ jessie-pgdg main"
+RUN wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -
+RUN apt-get update \
+    && apt-get install -y \
+    --no-install-recommends \
+        postgresql-client-common \
+        postgresql-client-9.6 \
+    && apt-get clean \
+    && apt-get autoremove \
+    && rm -r /var/lib/apt/lists/*
+
+ADD requirements.txt /opt/app/requirements.txt
+ADD setup.py /opt/app/setup.py
+ADD setup.cfg /opt/app/setup.cfg
+ADD README.md /opt/app/README.md
+ADD CHANGELOG.md /opt/app/CHANGELOG.md
+
+WORKDIR /opt/app
+
+RUN easy_install virtualenv
+RUN virtualenv --no-site-packages env
+RUN ./env/bin/pip install -r requirements.txt
+
+ADD . /opt/app
+
+RUN ./env/bin/python setup.py extract_messages
+RUN ./env/bin/python setup.py init_catalog -l en
+RUN ./env/bin/python setup.py compile_catalog
+
+CMD ./env/bin/pserve --reload development.ini
+
+EXPOSE 6543