Set-up CI

.gitlab-ci.yaml

+before_script:
+    - date
+    - whoami
+    - export PATH=/afs/psi.ch/sys/psi.x86_64_slp6/Tools/texlive/2017/bin/x86_64-linux/:/afs/psi.ch/sys/psi.x86_64_slp6/Programming/psi-python27/4.4.0/bin/:$PATH
+    - python --version
+
+stages:
+    - check
+    - build
+
+pep8check:
+    stage: check
+    script:
+        - make check
+
+run:
+    stage: build
+    script:
+        - make all
+    artifacts:
+        when: on_success
+        name: "results-$CI_COMMIT_REF_NAME"
+        paths: 
+          - *.html 
+          - *.pdf
+          - *.ipynb
+        expire_in: 8 wekks