Fix HA tests to match recent ONOS changes

- Minor refactoring to prepare for Upgrade tests
- Fix for change in raft log location
- Fix for auto balancing of leader electors
- Fix for path not found being printed as an exception for intents

Change-Id: I55af0d09c9b3bf74c0f221e7caa6840373a8779d
diff --git a/TestON/tests/HA/HAstopNodes/HAstopNodes.py b/TestON/tests/HA/HAstopNodes/HAstopNodes.py
index 2884535..4c8fe1d 100644
--- a/TestON/tests/HA/HAstopNodes/HAstopNodes.py
+++ b/TestON/tests/HA/HAstopNodes/HAstopNodes.py
@@ -180,7 +180,7 @@
         """
         The bring up stopped nodes
         """
-        main.HA.bringUpStoppedNode( main )
+        main.HA.bringUpStoppedNodes( main )
 
     def CASE7( self, main ):
         """