added conf attribute for the struts dependency (SPR-7033)

org.springframework.web.struts/ivy.xml

@@ -26,7 +26,7 @@
                     conf="compile, commons-logging->compile"/>
 		<dependency org="org.apache.commons" name="com.springsource.org.apache.commons.beanutils" rev="1.7.0"
                     conf="compile->compile"/>
-		<dependency org="org.apache.struts" name="com.springsource.org.apache.struts" rev="1.2.9" />
+		<dependency org="org.apache.struts" name="com.springsource.org.apache.struts" rev="1.2.9" conf="compile->compile"/>
 		<dependency org="org.springframework" name="org.springframework.beans" rev="latest.integration"
                     conf="compile->compile"/>
 		<dependency org="org.springframework" name="org.springframework.context" rev="latest.integration"