Docker builds are broken

$ docker build -t touchosc2midi:latest .
Sending build context to Docker daemon 2.048 kB
Step 1/4 : FROM python:2.7
 ---> 68caceba17ab
Step 2/4 : RUN apt-get update &&    apt-get install -y liblo-dev librtmidi-dev
 ---> Using cache
 ---> 8d14683aef5a
Step 3/4 : RUN pip install touchosc2midi
 ---> Running in 6019c3ca92c8
Collecting touchosc2midi
  Downloading touchosc2midi-0.0.9.tar.gz
Collecting pyliblo<=0.10.0 (from touchosc2midi)
  Downloading pyliblo-0.10.0.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-ADpx0R/pyliblo/setup.py", line 20, in <module>
        from Cython.Distutils import build_ext
    ImportError: No module named Cython.Distutils

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-ADpx0R/pyliblo/
The command '/bin/sh -c pip install touchosc2midi' returned a non-zero code: 1
velolala / touchosc2midi

Docker builds are broken #14
