To be done after and
Change the CI URL everywhere (in particular in the POM): wherever we link to http://ci.hibernate.org/job/hibernate-search-master/, we should link to http://ci.hibernate.org/job/hibernate-search/ instead
Enable Travis for the main repository, but not for PRs. Just to check that the .travis.yml file is still correct.
Only one job per build (do not test multiple Elasticsearch versions)
Remove DB-specific configuration
Remove sonar-related configuration
Remove coveralls-related configuration
Disable older Jenkins jobs for the "master" branch and rename them to be clear these are legacy jobs, or maybe even delete them if we're confident enough. Do not touch the release job, or any job related to maintenance branches.
Edit the hibernate-search-pr job to only include PRs to maintenance branches which don't have a Jenkinsfile. PRs to master and newer branches don't need this job.