Add netlink dependency

We did this as follows:

* godep restore
* godep save ./...

(If godep save had failed, we would probably just have needed to issue appropriate git submodule update commands and start again.)

Signed-off-by: Steve Powell <spowell@pivotal.io>
Add integration test skeleton for configure

Signed-off-by: Steve Powell <spowell@pivotal.io>
Add to scaffolding for configure integration test (build main)

Signed-off-by: Steve Powell <spowell@pivotal.io>