Do "docker run" directly inside the Makefile, without wrapping it through the "run" target in make/Makefile. Use $(USER)/ttcn3-bts-test as image name, instead of $(REGISTRY)/$(USER)/ttcn3-bts-test. The $(REGISTRY)/ part is hardcoded in make/Makefile.
This fixes TTCN3-centos-bts-test, because it uses the ttcn3-bts-test image that gets built in jenkins.sh before running 'make cfg'. Without the patch, an image downloaded some time ago from the registry gets used (a new image is not pulled), leading to the stale config.
