Test only PolyGerrit if Java sources are untouched

When a change contains only modifications to the PolyGerrit GUI
we do not need to go through the full regression suite
with default and NoteDB modes.

By performing *ONLY* the PolyGerrit GUI tests we make the front-end
team happy and avoid overloading the CI with useless repetitive
tests.

Change-Id: I8c8a5e359b8121d65d31bb104205c121ecffee95
1 file changed
tree: 12f46fb41d8ccb5f71468c786c6e750f26c44e5c
  1. jenkins/
  2. jenkins-docker/
  3. .gitignore