WW-4233 Adds UTF-8 encoding property to all poms

git-svn-id: https://svn.apache.org/repos/asf/struts/struts2/trunk@1534982 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 9a89db7..9ace28f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -54,4 +54,7 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
+    <properties>
+    	<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
 </project>