Adding utility to provide STC warden status.

Change-Id: Ia7521e7bd21e7821f3c1383a5ac37b68d0ec78e7
diff --git a/tools/dev/bash_profile b/tools/dev/bash_profile
index be8a9d4..afac5f6 100644
--- a/tools/dev/bash_profile
+++ b/tools/dev/bash_profile
@@ -173,6 +173,7 @@
 
 # ON.Lab shared test cell warden address
 export CELL_WARDEN="10.254.1.19"
+export CELL_SLAVES="$CELL_WARDEN 10.254.1.18 10.254.1.17"
 
 # Clears cell environment
 function clearCell {