DATACMNS-742 - Upgraded test dependencies.

XmlUnit 1.3 -> 1.6
Groovy 1.8.6 -> 2.4.4

pom.xml

@@ -177,7 +177,7 @@
 		<dependency>
 			<groupId>xmlunit</groupId>
 			<artifactId>xmlunit</artifactId>
-			<version>1.3</version>
+			<version>1.6</version>
 			<scope>test</scope>
 		</dependency>
 
@@ -185,7 +185,7 @@
 		<dependency>
 			<groupId>org.codehaus.groovy</groupId>
 			<artifactId>groovy-all</artifactId>
-			<version>1.8.6</version>
+			<version>2.4.4</version>
 			<scope>test</scope>
 		</dependency>