Run ExecutionTest w/integration test framework

I changed the default local.xml to use 2 NCs with
2 partitions each like AsterixHyracksIntegrationUtil
so that the results will match despite using simple
string compare to determine correctness.

There is also one test in particular (big-object-join)
that I had to add an artificial order by clause to
to deal with different results.

Issues outstanding:
- HDFS in ClusterExecutionIT needs to be thought out

Change-Id: I423f2a7c77839b999d466dd5cace302574d956c0
Reviewed-on: https://asterix-gerrit.ics.uci.edu/525
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Chris Hillery <ceej@lambda.nu>
diff --git a/asterix-app/src/test/resources/optimizerts/queries/orderby-desc-using-gby.aql b/asterix-app/src/test/resources/optimizerts/queries/orderby-desc-using-gby.aql
index 9ec244b..794a0ab 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/orderby-desc-using-gby.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/orderby-desc-using-gby.aql
@@ -39,12 +39,12 @@
   }
 }
 
-create nodegroup group1 if not exists on nc1, nc2;
+create nodegroup group1 if not exists on asterix_nc1, asterix_nc2;
 
 create dataset Customers(CustomerType) 
   primary key cid on group1;
   
-write output to nc1:"rttest/gby-using-orderby-desc.adm";
+write output to asterix_nc1:"rttest/gby-using-orderby-desc.adm";
 
 for $c in dataset('Customers')
 group by $name := $c.name decor $age := $c.age with $c