Marking some old developer tools as deprecated; wil be removed after Falcon release.

Adding a teardown STC scenario.

Change-Id: Ifb0d5ce0546f072f46485266e5247cb49a39db1c
diff --git a/tools/test/bin/onos-group b/tools/test/bin/onos-group
index 150f947..1337e28 100755
--- a/tools/test/bin/onos-group
+++ b/tools/test/bin/onos-group
@@ -3,6 +3,9 @@
 # Allows a select group of commands to be sent to all ONOS instances in a cell.
 # -----------------------------------------------------------------------------
 
+echo "This command has been deprecated and will be removed after Falcon release"
+echo "Please use the 'stc setup|shutdown|teardown' command instead"
+
 set -o pipefail
 IFS=$'\n'