Mvn build slave based on debian jessie

Get rid of the legacy Ubuntu docker image for mvn builds
and rely on the new Debian jessie.

Change-Id: I1ec8ca49ff3ebb1d02662d9da93be182c3d449f8
1 file changed
tree: 83174a1df87b4c3b1dbacf0a077f864a6b15d9b2
  1. jenkins/
  2. jenkins-docker/
  3. worker/
  4. .gitignore