Merge pull request #78 from rmohr/dhcp

Don't let DHCP IPAM plugin fail on missing lease

plugins/ipam/dhcp/daemon.go

@@ -91,10 +91,9 @@ func (d *DHCP) Release(args *skel.CmdArgs, reply *struct{}) error {
 
 	if l := d.getLease(args.ContainerID, conf.Name); l != nil {
 		l.Stop()
-		return nil
 	}
 
-	return fmt.Errorf("lease not found: %v/%v", args.ContainerID, conf.Name)
+	return nil
 }
 
 func (d *DHCP) getLease(contID, netName string) *DHCPLease {