move from Godeps to vndr

This uses the standard go vendor location instead of old Godeps
location.

Also remove usage of symlink GOPATH. Since our README mentions that you
should build it inside GOPATH, i think its a reasonable to assume that
you dont need to create a tmp GOPATH.

Signed-off-by: Daniel Dao <dqminh89@gmail.com>

vendor/github.com/vishvananda/netlink/netlink.go

@@ -0,0 +1,39 @@
+// Package netlink provides a simple library for netlink. Netlink is
+// the interface a user-space program in linux uses to communicate with
+// the kernel. It can be used to add and remove interfaces, set up ip
+// addresses and routes, and confiugre ipsec. Netlink communication
+// requires elevated privileges, so in most cases this code needs to
+// be run as root. The low level primitives for netlink are contained
+// in the nl subpackage. This package attempts to provide a high-level
+// interface that is loosly modeled on the iproute2 cli.
+package netlink
+
+import (
+	"net"
+
+	"github.com/vishvananda/netlink/nl"
+)
+
+const (
+	// Family type definitions
+	FAMILY_ALL = nl.FAMILY_ALL
+	FAMILY_V4  = nl.FAMILY_V4
+	FAMILY_V6  = nl.FAMILY_V6
+)
+
+// ParseIPNet parses a string in ip/net format and returns a net.IPNet.
+// This is valuable because addresses in netlink are often IPNets and
+// ParseCIDR returns an IPNet with the IP part set to the base IP of the
+// range.
+func ParseIPNet(s string) (*net.IPNet, error) {
+	ip, ipNet, err := net.ParseCIDR(s)
+	if err != nil {
+		return nil, err
+	}
+	return &net.IPNet{IP: ip, Mask: ipNet.Mask}, nil
+}
+
+// NewIPNet generates an IPNet from an ip address using a netmask of 32.
+func NewIPNet(ip net.IP) *net.IPNet {
+	return &net.IPNet{IP: ip, Mask: net.CIDRMask(32, 32)}
+}