VRouter NetNS script fix

- Set a display name on veth
- Use a default ID as rt table in the netns
- Correct the scons script to support dependance on the vrouter API
  library and run unit tests

Change-Id: If7e42147849dade6fd6f6aa56a1bc6a829441d53
Signed-off-by: Édouard Thuleau <edouard.thuleau@cloudwatt.com>
1. Add sg rule uuid and nw ace uuid to flow records
2. Add systemless test for flow action

Change-Id: I6b0197b27b851b80244afdbcf7f2865f763cabde
Add router gateway support

When a gateway is set on router, the plugin starts a NetNS source NAT
service instance between the a dedicated private network and the public.
Then it creates a routing table with a default route that point to the
left interface of the NetNS service instance private port.
Each time a network is attached with aqn interface to the virtual
router, the route table is applied.

Change-Id: I53592099bda87628e90a53159e92f99777ccff10
Signed-off-by: Édouard Thuleau <edouard.thuleau@cloudwatt.com>
merge : update POST to use multi_perform to send larger data

Change-Id: I6c93a0cb7f2ef33192923652eb6d8e2fd642c455
Fix failure in xmpp_sess_toggle test and update a sandesh message

Change-Id: Ica6225a2575cbd7ee5d5112c8a04e30ca22a9c67
Make bgp_xmpp_wready_test more robust.

Don't assume that routes will be advertised in a specific order.
Don't use static variable in mock class - causes failure if a
repeat count is provided.

Change-Id: I1173fdc2d8be74578c75239fdc251dbca5870ced
Merge "Add router gateway support"
Merge "1. Add sg rule uuid and nw ace uuid to flow records 2. Add systemless test for flow action"
Merge linux bridge support for vxlan

Change-Id: I4b6114bb762bf0c6df16f19ba5bd3fee4ff2d5a8
Merge "VRouter NetNS script fix"
Ignore back to back subscribe requests for an instance.

Change-Id: Ibf65c68c7069e2839af88e383dabdcca1cdf1b0f
Merge "Make bgp_xmpp_wready_test more robust."
Merge "Merge linux bridge support for vxlan"
Merge "Fix failure in xmpp_sess_toggle test and update a sandesh message"
Merge "merge : update POST to use multi_perform to send larger data"
Merge "Ignore back to back subscribe requests for an instance."