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-installer/src/main/resources/conf/asterix-configuration.xml b/asterix-installer/src/main/resources/conf/asterix-configuration.xml
index 622ed3a..60aaec9 100644
--- a/asterix-installer/src/main/resources/conf/asterix-configuration.xml
+++ b/asterix-installer/src/main/resources/conf/asterix-configuration.xml
@@ -20,7 +20,7 @@
 
 	<property>
 		<name>nc.java.opts</name>
-		<value>-Xmx1536m</value>
+		<value>-Xmx3096m</value>
 		<description>JVM parameters for each Node Contoller (NC)</description>
 	</property>
 
@@ -98,7 +98,7 @@
 	
 	<property>
 		<name>storage.memorycomponent.globalbudget</name>
-		<value>536870912</value>
+		<value>1073741824</value>
 		<description>The total size of memory in bytes that the sum of all
 			open memory
 			components cannot exceed. (Default = "536870192" // 512MB)