Bug 1084427 - Stop JBossEws cartridge gracefully

Replace SIGKILL with SIGTERM and a fallback to force kill the
processes after a timeout.
See other jboss carts for reference.
Merge pull request #5720 from vbalazs/bvarga/bz_1084427_jbossews_graceful_stop

Merged by openshift-bot
broker: Prevent app rollback on failure

Enterprise bug 1092045
https://bugzilla.redhat.com/show_bug.cgi?id=1092045

Add a config option for the broker to prevent app rollbacks