Merge branch 'master' of git.fsmpi.rwth-aachen.de:videoaginfra/ffworker

.gitlab-ci.yml

 buildtest:
-    image: debian:stretch
-    stage: test
-    script:
+  image: debian:stretch
+  stage: test
+  script:
     - apt update
     - uname -a
     - apt install -y locales-all git build-essential  make libavformat-dev libavcodec-dev libavfilter-dev libavutil-dev libxml2-dev libcurl4-openssl-dev
     - make
-    artifacts:
-      paths:
+  artifacts:
+    paths:
       - probe
       - probe-raw
       - remux thumbnail
       - transcode
       - publish_video
       - simple_live_transcode
-      :