*: update import paths to use versioned services

Signed-off-by: Stephen J Day <stephen.day@docker.com>

cmd/ctr/shim.go

@@ -19,7 +19,7 @@ import (
 
 	"github.com/Sirupsen/logrus"
 	"github.com/containerd/console"
-	"github.com/containerd/containerd/api/services/shim"
+	"github.com/containerd/containerd/api/services/shim/v1"
 	protobuf "github.com/gogo/protobuf/types"
 	"github.com/opencontainers/runtime-spec/specs-go"
 	"github.com/pkg/errors"