clean pom.xml to set fork=true

git-svn-id: https://asterixdb.googlecode.com/svn/branches/asterix_stabilization@1276 eaa15691-b419-025a-1212-ee371bd00084
diff --git a/asterix-runtime/pom.xml b/asterix-runtime/pom.xml
index be64661..245f577 100644
--- a/asterix-runtime/pom.xml
+++ b/asterix-runtime/pom.xml
@@ -18,6 +18,7 @@
 				<configuration>
 					<source>1.7</source>
 					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 	      	<plugin>