always meet control error when restartstop a jbossews scalable app with
medium or large gear size

https://bugzilla.redhat.com/show_bug.cgi?id=1124361
Merge pull request #5679 from bparees/jboss_pid_kill_stage

Merged by openshift-bot
Automatic commit of package [openshift-origin-cartridge-jbossews] release [1.26.6-1].