Add proper Cleanup script.

Chore following such addition.

scripts/0.start_dls.sh

@@ -1,7 +1,5 @@
 #!/bin/bash
 #
-D2C_CTR_NAME=dir2config
-DLS_CTR_NAME=dls
 # Admin token to unlock the DLS store
 DLS_UNLOCK_TOKEN=changeme
 #
@@ -24,7 +22,7 @@ dir2config() {
 }
 
 start_store() {
-  if docker ps|grep " $DLS_CTR_NAME$" ; then
+  if docker ps|grep " $DLS_CTR_NAME$" &>/dev/null; then
     pinfo "Container $DLS_CTR_NAME seems already running"
     return
   fi