Added docker-compose file for development.

Dockerfile.dev

@@ -0,0 +1,14 @@
+FROM python:3.6-alpine
+
+MAINTAINER Antoine Nguyen <tonio@ngyn.org>
+
+RUN apk add --update python3-dev libffi-dev gcc musl-dev libxml2-dev libxslt-dev \
+    libressl-dev jpeg-dev \
+    && rm -rf /var/cache/apk/*
+
+WORKDIR /tmp
+COPY requirements.txt /tmp
+RUN pip install -r requirements.txt
+
+RUN mkdir /code
+WORKDIR /code