Comment 10 for bug 1379607

Find 3 bugs in the first round test, test case link http://goo.gl/wObkxQ
1, using the same hostname to help reschedule router into online l3-agent,
   in order to avoiding the error when execting the command 'crm node standby/online', restore hostname into previous value, see the fixed patch.
   http://bazaar.launchpad.net/~cts-engineering/charms/trusty/quantum-gateway/quantum-gateway-ha/revision/88
2, fix deleting namespace and qr-, qg- and their peer devices, see the fix patch
   http://bazaar.launchpad.net/~cts-engineering/charms/trusty/quantum-gateway/quantum-gateway-ha/revision/89
3, dhcp_agents_per_network doesn't equal the number of neutron-gateway