add soldier commander to kill_node.sh

kill_node.sh

@@ -1,4 +1,4 @@
-for pid in `/bin/ps -fu $USER| grep "benchmark\|txgen" | grep -v "grep" | awk '{print $2}'`;
+for pid in `/bin/ps -fu $USER| grep "benchmark\|txgen\|soldier\|commander" | grep -v "grep" | awk '{print $2}'`;
 do
     echo 'Killed process: '$pid
     kill -9 $pid