more setup tweaks

.gitlab-ci.yml

-image: ubuntu:latest
+image: ubuntu:zesty
 
 stages:
   - test

Dockerfile

-FROM ubuntu:latest
+FROM ubuntu:artful
 
 # dependencies via apt
 RUN apt-get update
@@ -11,11 +11,6 @@ ADD ci/requirements.txt /tmp/requirements.txt
 RUN pip install --upgrade -r /tmp/requirements.txt
 
 
-# install pyHealpix, pyfftw and h5py
-ADD ci/install_pyHealpix.sh /tmp/install_pyHealpix.sh
-RUN cd /tmp && chmod +x install_pyHealpix.sh && ./install_pyHealpix.sh
-
-
 # copy sources and install nifty
 COPY . /tmp/NIFTy
 RUN pip install /tmp/NIFTy

ci/install_basics.sh

@@ -2,5 +2,5 @@
 
 apt-get install -y build-essential  git autoconf libtool pkg-config \
   libfftw3-bin libfftw3-dev libfftw3-double3 libfftw3-long3 libfftw3-quad3 libfftw3-single3 \
-  python  python-pip  python-dev  python-nose  python-numpy  python-matplotlib  python-future  python-coverage \
-  python3 python3-pip python3-dev python3-nose python3-numpy python3-matplotlib python3-future python3-coverage
+  python  python-pip  python-dev  python-nose  python-numpy  python-matplotlib  python-future \
+  python3 python3-pip python3-dev python3-nose python3-numpy python3-matplotlib python3-future

ci/requirements.txt

 parameterized
+coverage
 pyfftw
 git+https://gitlab.mpcdf.mpg.de/ift/pyHealpix.git@setuptools_test