1.0.0-beta.3

Changelog
40cbe6b Vagrantfile: bump Go to 1.7.5
a85cd7d update the default data interface as per Vagrantfile
66712a5 Update netplugin version to latest and add documentation to remove kube-dns
65acf1c implement changes to be able to make releases
e06897f upgrade uplink changes
8ae0776 node_test.go: avoid scp fingerprint prompt
3e71130 remove skydns, use inline dns instead.
480220c godep updates from contivmodel with 1. dns variables removed 2. updated comments in client
7996620 increased test timeout
e050b11 vendor latest ofnet
78d477d Make host pvt-subnet configurable