Bump libcompose and its dependencies

vendor/github.com/docker/engine-api/client/network_connect.go

@@ -0,0 +1,18 @@
+package client
+
+import (
+	"github.com/docker/engine-api/types"
+	"github.com/docker/engine-api/types/network"
+	"golang.org/x/net/context"
+)
+
+// NetworkConnect connects a container to an existent network in the docker host.
+func (cli *Client) NetworkConnect(ctx context.Context, networkID, containerID string, config *network.EndpointSettings) error {
+	nc := types.NetworkConnect{
+		Container:      containerID,
+		EndpointConfig: config,
+	}
+	resp, err := cli.post(ctx, "/networks/"+networkID+"/connect", nil, nc, nil)
+	ensureReaderClosed(resp)
+	return err
+}