Bug 955789 - Enabling mongo connection check in oo-accept-broker

https://bugzilla.redhat.com/show_bug.cgi?id=955789

Re-enabling mongo connection checks in oo-accept-broker.  Without these
enabled, if the broker cannot communicate with mongo you would get odd
error messages from oo-accept-broker
Merge pull request #2288 from detiber/bz955789

Merged by openshift-bot