feat: bump version to 0.4.0

feat: support expose pod ip to external network

fix: check conflict subnet cidr

fix: start informer when controller is leader

feat: validate namespace/pod annotations

fix: wait node-gw info ready

fix: use ovn/ovs-ctl to health check

feat: remove finalizer dependency improve svc performance

fix: reuse node ip and mac annotation

Add ha for ovn dbs and simplify makefile

http://docs.openvswitch.org/en/latest/ref/ovsdb.7/#clustered-database-service-model
https://bugs.launchpad.net/openstack-ansible/+bug/1790933
https://mail.openvswitch.org/pipermail/ovs-discuss/2018-March/046470.html

feat: merge ovn-nbctl request

feat: separate static and dynamic address pod and add parallelism to …

Mute logrus log for ipset

Dont need to change the vendored code.

Fix klog cant use V module

The side affect of this commit is glog's V module not work.

feat: use ovn macam to allocate mac for static ip pod

feat: update ovn to 2.11.1

Add vagrantfile

fix: use tag version yaml url

chore: fix go-report golint issues

HA for kube-ovn-controller