Default to setting secure mode on the integration bridge

Set the fail-mode on the integration bridge to be secure. This means if the agent
is stopped or crashes, and OVS is also restarted, OVS will not program a default
NORMAL action. As soon as the agent is restarted, it will correctly program the
integration bridge.

Change-Id: Icf7e3e14ee747c8ce92c14c95a0a1bbf35986252
Closes-Bug: #1324703
Imported Translations from Transifex

Change-Id: I3c8e6595c12a2dabd15eb811f7d3fd5611427c6c
Added RpcProxy class

This class is intended for easy and iterative migration from
oslo-incubator RPC implementation to oslo.messaging. It will adapt
oslo.messaging API to old oslo-rpc interfaces.

Migrated all affected classes to the new RpcProxy class.

blueprint oslo-messaging

Change-Id: I1563c13b470b61eebc982ee81efee47732943d48
Introduced transition RPC exception types

These exception types will ease transition from oslo-rpc to
oslo.messaging.

blueprint oslo-messaging

Change-Id: I48d214d676e863d7a60d78c49d2fa917d47c07d9
Make allocation_pools attribute of subnet updateable by PUT

Bug 1111572 was filed about a failed update (PUT) on
'allocation_pools' of subnet. This is currently not allowed by the
neutron API (hence DocImpact below). Following discussion on the
bug and subsequently, it seems this is a desirable feature.

This review makes the allocation_pools attribute of subnet
updateable by PUT. The semantics are that the entire allocation
pools attribute is replaced by the provided parameter (see
provided tests for details).

Unit tests added that exercise successful update of
allocation_pools with sane params and update using erroneous
allocation_pools that fall outside the subnet cidr.

DocImpact

Closes-Bug: 1111572
Change-Id: I47a3a71d0d196b76eda46b1d960193fb60417ba9
Co-Authored-By: Robert Collins <rbtcollins@hp.com>
Merge "Imported Translations from Transifex"
Merge "Added RpcProxy class"
Merge "Introduced transition RPC exception types"
Merge "Make allocation_pools attribute of subnet updateable by PUT"
Merge "Default to setting secure mode on the integration bridge"