Switch jenkins update url to use https to avoid mixed mode blocking in browsers
WIP Node Platform - Improve oo-namespace-init performance

* Remove restorecon on /dev/shm polyinstantiation
* Exit script ASAP if no changes needed
Merge pull request #4907 from bparees/jenkins_mixed

Merged by openshift-bot
Merge pull request #4911 from jwhonce/wip/oo-namespace-init

Merged by openshift-bot