move unused files to old folder && update bbu key && change image name to vbbu

(1) move unused files to "old" folder
(2) changed the bbu key name and location
(3) docker 1.10 does not support uppercase characters in docker image name
    So changed vBBU to vbbu

Change-Id: I3d83f9e4c780c14ec6a4e27ca0239829c867d640
diff --git a/mcord/Makefile b/mcord/Makefile
index 1ee1435..3edb916 100644
--- a/mcord/Makefile
+++ b/mcord/Makefile
@@ -67,7 +67,7 @@
 	#$(RUN_TOSCA_BOOTSTRAP) $(SERVICE_DIR)/vtr/xos/vtr-onboard.yaml
 	$(RUN_TOSCA_BOOTSTRAP) synchronizers.yaml
 	$(RUN_TOSCA_BOOTSTRAP) ../common/enable-onboarding.yaml
-	bash ../common/wait_for_onboarding_ready.sh 81 services/vBBU
+	bash ../common/wait_for_onboarding_ready.sh 81 services/vbbu
 	#bash ../common/wait_for_onboarding_ready.sh 81 services/vPGWC
 	bash ../common/wait_for_onboarding_ready.sh 81 services/vtn
 	bash ../common/wait_for_onboarding_ready.sh 81 services/onos