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/introhashpartitionmerge.aql b/asterix-app/src/test/resources/optimizerts/queries/introhashpartitionmerge.aql
index 1fefe35..261a357 100644
--- a/asterix-app/src/test/resources/optimizerts/queries/introhashpartitionmerge.aql
+++ b/asterix-app/src/test/resources/optimizerts/queries/introhashpartitionmerge.aql
@@ -25,11 +25,11 @@
   rank: int32
 }
 
-create nodegroup group1 if not exists on nc1, nc2;
+create nodegroup group1 if not exists on asterix_nc1, asterix_nc2;
 
 create dataset TOKENSRANKEDADM(TOKENSRANKEDADMType) primary key rank on group1;
 
-write output to nc1:'rttest/introhashpartitionmerge.adm';
+write output to asterix_nc1:'rttest/introhashpartitionmerge.adm';
 
         for $token1 in dataset('TOKENSRANKEDADM')
         for $token2 in