Fix ubuntu static configuration snippet

Closes-bug: 1248954
Merge pull request #860 from xenolog/bp/quantum-no-logging.conf

backport 'More powerfull logs for Neutron' for Quantum-3.2.1
CIBADMIN without pipes
anti-execution-expired order for l3-agent and dhcp-agent
anti-execution-expired order for metadata-agent
anti-execution-expired order for ovs-agent