Added sirupsen and updated all occurances

Updated `sirupsen`, `docker/cli`, `docker/libcompose` in `glide`,
Also changed `Sirupsen` with `sirupsen` in all kompose packages as well as in
`docker/distribution` packages

vendor/github.com/docker/distribution/context/http.go

@@ -8,7 +8,7 @@ import (
 	"sync"
 	"time"
 
-	log "github.com/Sirupsen/logrus"
+	log "github.com/sirupsen/logrus"
 	"github.com/docker/distribution/uuid"
 	"github.com/gorilla/mux"
 )

vendor/github.com/docker/distribution/context/logger.go

@@ -3,7 +3,7 @@ package context
 import (
 	"fmt"
 
-	"github.com/Sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 	"runtime"
 )
 

vendor/github.com/docker/distribution/manifest/schema1/verify.go

@@ -3,7 +3,7 @@ package schema1
 import (
 	"crypto/x509"
 
-	"github.com/Sirupsen/logrus"
+	"github.com/sirupsen/logrus"
 	"github.com/docker/libtrust"
 )