oo-accept-node changed the cgroups check to ignore defunct processes

Changed the oo-accept-node cgroups check to ignore defunct processes as these
processes can't consume any resources, so it's normal for the kernel to remove
them from cgroups.
Bug 964116: Postgres failed to restore snapshot

https://bugzilla.redhat.com/show_bug.cgi?id=964116

The `post_restore` function was attempting to delete the old user, even
if it was the same as the new user. This has been fixed.
Bug 965322 - Ruby always building 1.9.3 environment

* Only bundle using SCL 1.9.3 if configured Ruby version is 1.9
Improve error messages
Bug 965322 - Use expected version of ruby to start httpd
Merge pull request #2556 from twiest/dev/twiest/oo-accept-node/cgroups-defunct-procs

Merged by openshift-bot
Merge pull request #2562 from fotioslindiakos/Bug964116

Merged by openshift-bot
Merge pull request #2566 from danmcp/master

Merged by openshift-bot
Merge pull request #2568 from jwhonce/bug/965332

Merged by openshift-bot
Merge pull request #2559 from rajatchopra/master

Merged by openshift-bot