pushing a bit harder in the tests with 1000 files of 15kB that should fill 1.5 tapes (100MB each in CI).

removing CI_DEBUG_TRACE as it dumps all the certificates and secure variables on the build stdout...

Add publish_tagged_rpm and needed helper derived from https://gitlab.cern.ch/ci-tools/ci-web-deployer as we need to run the update_repo.sh hook after the file transfert.

Adding cta_tagged_rpm stage. CTA_RELEASE and CTA_VERSION are not exported as is to avoid overriding environment variables used by cmake. Therefore I am using TAG_VERSION and TAG_RELEASE.

Print CTA_BUILD_ID in the jobs and not the full SHA of the commit of course. The generated rpm version was OK but the logs were useless.

`CI_BUILD_REF` environment variable has been dropped in [gitlab 9.0](https://cern.service-now.com/service-portal/view-outage.do?n=OTG0037271)

now expiring artifacts after 30 days as the repository was reaching 10GB quota limit (by the way this limit has been raised to 20GB today).

Now `run_systemtest.sh` can be used standalone, outside of CI environment.

Adding Valgrind to gitlab CI based on https://gitlab.cern.ch/dss/dss-ci-docker/blob/master/cta/autotest/Dockerfile dockerfile used in jenkins

it looks like yum-builddep is not grabing repo content, so copy repo files first so that yum takes care of this step