LBaaS: make haproxy stats parsing more safe

Change-Id: Ic21b310608bb98be29ea50ab7c56ca859a9ed5c0
Closes-Bug: #1220692
Fix NVP plugin to send notifications for gateway-less subnets

It was noted that an update notification should be sent
regardless; this patch addresses that. Since there is
no longer the need to distinguish on whether to send
the RPC message or not, the operation has been factored
out to avoid code duplication.

Closes-Bug: 1220881

Change-Id: If553a84b7221f8c98d758654d317217a909c43dc
vArmour gateway agent and FWaaS driver

This patch enables vArmour's routing and firewall services to be deployed in
openstack environment.
- as gateway for internal networks
- support SNAT and DNAT (floating IP)
- FWaaS services

Implements: blueprint varmour-fwaas-driver
Change-Id: I6ddfa3137ed7e2a3fcf16a764d1340a8eae9359a
fix conversion type missing

Conversion type is missing in some places which would cause some
unexcepted error. By using 'grep -rn "%(\w\+)\W"', we could find
all cases of '%(variable_a)' and fix them.

Change-Id: I05cbaac73976c70be8428bf5a2d0017ea7059cb3
Closes-Bug: #1221036
Allow default network and policy profiles

Allow for default network/policy profile to be used if
no network/policy profile is specified during network/port creation
in the Cisco N1KV plugin.

Change-Id: I6120abb5abb9a869eb7310453cf27dd8f72bfd1d
Closes-Bug: #1218588
Merge "Fix NVP plugin to send notifications for gateway-less subnets"
Merge "fix conversion type missing"
Install metering_agent.ini and vpn_agent.ini

Fixes Bug: 1221451
Change-Id: I83c4e4e0cfd6605930acfcc4f69ea9ece35abc24
Merge "LBaaS: make haproxy stats parsing more safe"
Merge "Install metering_agent.ini and vpn_agent.ini"
Merge "Allow default network and policy profiles"
Merge "vArmour gateway agent and FWaaS driver"
Add l2 population base classes

This patch initiates the blueprint l2-population
Implemented as a ml2 Mechanism driver.

OVS & LinuxBridge drivers will be added as dependencies.

Rebased on ML2 Portbinding.

Change-Id: Ia2345aa262ec791c9f38b6e41e1e4b46f69cadac
Vxlan / L2population support to Linuxbridge Agent

Vxlan support based on https://review.openstack.org/26516

This is a part of the blueprint l2-population

Change-Id: I99a961c53f9e451409f1affb079042936d8ae5c6