Recording the earlier changes and the integration of the new
executable-war.

JENKINS-8658 depend on latest executable-war. This is where the fix should be. Note: of course one should release that dependency into a stable version

Since we've just changed the group ID and break everyone who depend on
the old artifact GAV, might as well rename artifact IDs as well.
(Otherwise we'd break people twice.)

so i can use now directly : mvn install -pl war -am to get the war without building tests too

There are sill issues with maven2 builds and reporters