util-scl/oo-mco: Added error message when scl mco does not exist.

Bug 1131139
Bugzilla link https://bugzilla.redhat.com/show_bug.cgi?id=1131139
oo-mco is installed on nodes due to rpm configuration, however the scl mco executable is not. Added error message to avoid confusion for newer administrators.
Merge pull request #5719 from tiwillia/bz1131139

Merged by openshift-bot
Automatic commit of package [rubygem-openshift-origin-node] release [1.30.5-1].
Automatic commit of package [openshift-origin-cartridge-jbosseap] release [2.20.3-1].
Automatic commit of package [openshift-origin-logshifter] release [1.7.3-1].
Automatic commit of package [openshift-origin-util-scl] release [1.18.2-1].
Automatic commit of package [openshift-origin-node-util] release [1.29.3-1].
broker: require v8 (SCLized in RHEL 6)

Bug 1108762 - Need to install v8314 package to start openshift-broker service
https://bugzilla.redhat.com/show_bug.cgi?id=1108762

openshift-broker requires v8 at startup, but the packaging did not
express this requirement. Modified so it does.
Merge pull request #5799 from sosiouxme/bz1108762

Merged by openshift-bot
Automatic commit of package [rubygem-openshift-origin-dns-fog] release [1.0.1-1].
Bug 1024531 - Update requires for selinux-policy version
Bug 1084090: False positives reported for stale ssh keys
 - In cases where the user had multiple domains, false positives could be reported for stale domain ssh keys
Merge pull request #5800 from jwhonce/bug/1024531

Merged by openshift-bot
Bump cartridge versions
Merge pull request #5788 from abhgupta/abhgupta-dev

Merged by openshift-bot
Increase watchman OOM plugin timeout

Increase timeout as 90 is prone to failure.

Resolve bug: https://bugzilla.redhat.com/show_bug.cgi?id=1140144
Automatic commit of package [rubygem-openshift-origin-controller] release [1.30.5-1].
Automatic commit of package [openshift-origin-node-util] release [1.29.4-1].
Merge pull request #5801 from ncdc/latest_versions

Merged by openshift-bot
Add a hidden, unsupported change_region option to oo-admin-move for non-scaled apps