Added py3-based dockerfile

Author: shin-

Dockerfile

@@ -1,5 +1,5 @@
 FROM python:2.7
-MAINTAINER Joffrey F <joffrey@dotcloud.com>
+MAINTAINER Joffrey F <joffrey@docker.com>
 ADD . /home/docker-py
 WORKDIR /home/docker-py
 RUN pip install -r test-requirements.txt

Dockerfile-py3

@@ -0,0 +1,6 @@
+FROM python:3.4
+MAINTAINER Joffrey F <[email protected]>
+ADD . /home/docker-py
+WORKDIR /home/docker-py
+RUN pip install -r test-requirements.txt
+RUN pip install .