Build the admin-console plugin separately for master and stable-2.16

Due to API changes the plugin's master branch is no longer buildable
against both master and stable-2.16 of the plugin API.

Change-Id: If9220b69bee39aa0f3c84a444f9c2d6849a3aa8d
1 file changed
tree: bf51d3ca59541ff34e24d37ccbf5b9bc0bc08b5a
  1. jenkins/
  2. jenkins-docker/
  3. worker/
  4. .gitignore