Update HATests

    - Clean up some core code( no functional changes)
    - add retry to cli functions using the distributed primitives app
diff --git a/TestON/tests/HATestSingleInstanceRestart/HATestSingleInstanceRestart.params b/TestON/tests/HATestSingleInstanceRestart/HATestSingleInstanceRestart.params
index d027c36..f057592 100644
--- a/TestON/tests/HATestSingleInstanceRestart/HATestSingleInstanceRestart.params
+++ b/TestON/tests/HATestSingleInstanceRestart/HATestSingleInstanceRestart.params
@@ -16,7 +16,7 @@
     #CASE15: Check that Leadership Election is still functional
     #1,2,8,3,4,5,14,[6],8,3,7,4,15,9,8,4,10,8,4,11,8,4,12,8,4,13
     #extra hosts test 1,2,8,11,8,12,8
-    <testcases>1,2,8,3,4,5,14,16,17,[6],8,3,7,4,15,17,9,8,4,10,8,4,11,8,4,12,8,4,13</testcases>
+    <testcases>1,2,8,3,4,5,14,15,16,17,[6],8,3,7,4,15,17,9,8,4,10,8,4,11,8,4,12,8,4,13</testcases>
     <ENV>
         <cellName>HA</cellName>
     </ENV>