Check quantum status dependent on the plugin

There are Quantum plugins that do not require the use of an agent.
This patch relaxes the constraint in quantum-adv-test.sh by adding
the ability to customize the logic that verifies whether the test
can run or not, depending on the Quantum plugin of your choice.

Fixes bug #1177904

Change-Id: I6e2c17f43d9e1475b2eb175cceb5107a83f9aa74
ceilometer setup incorrectly sets notification_topics

drop glance_notifications from notification_topics in ceilometer setup

Change-Id: Ib18b4193af9df925b4ce4dbe3faf4c6a756ed03f
Fixes:Bug #1178704
Merge "ceilometer setup incorrectly sets notification_topics"
Merge "Check quantum status dependent on the plugin"
Merge branch 'master' of github.com:openstack-dev/devstack