Build websession-flatfile plugin stable-2.14 and stable-2.15 branches

The websession-flatfile plugin now has its own stable-2.14 and
stable-2.15 branches.

Change-Id: Id1e9718fbb25168624de998b28b19e4da99f2612
1 file changed
tree: b1b020d02cbce1fd256be0a462932d904321d9f1
  1. jenkins/
  2. jenkins-docker/
  3. worker/
  4. .gitignore