SchedulerManager receives all VMs status changes through AMQP but it doesn't
handle the ERROR notifications (not used before to Liberty version)
- updated test unit (test_scheduler_manager.TestNotifications.test_info_quota)
Change-Id: Ia1e4db66a743f2d42f01241505310cbed37b625e
Sem-Ver: bugfix
Closes-bug: #1648057