Merge branch 'master' into 'master'

Fix CI

It was more involved than I initially thought! But seems to be working now.

See merge request !3

.gitlab-ci.yml

+image: gitlab-registry.mpcdf.mpg.de/mpcdf/module-image
+
 job1:
-  script: ./autogen.sh && mkdir build && cd build && ../configure && make
+  before_script: 
+    - module load gcc autoconf automake libtool
+    - yum install -y perl-Data-Dumper perl-Thread-Queue
+  script: 
+    - ./autogen.sh && mkdir build && cd build && ../configure && make