Dhcp agent sync_state may block or delay
configuration of new networks.

Fixes Bug 1202722

Change-Id: I368cb064057d48be1491df6825cc67c265706b50
Fix test fail in neutron.tests.unit.test_security_groups_rpc

If running:

tox -epy27 neutron.tests.unit.test_security_groups_rpc

Tests fail with: DuplicateOptError: duplicate option: root_helper
as this is already registered and can be removed.

Fixes bug: 1204700

Change-Id: I8b591357988c5546ae55b6531cf1786b7eb84e20
Merge "Fix test fail in neutron.tests.unit.test_security_groups_rpc"
Merge "Dhcp agent sync_state may block or delay configuration of new networks."