Added support for a top-level 'poller' element. A single top-level poller may have a value of 'default=true'. When using the namespace support, endpoints with pollable input-channels are now required to have an explicit poller sub-element or a 'default' poller within the context. The sub-element now also accepts a "ref" (INT-390).

org.springframework.integration/src/test/java/org/springframework/integration/endpoint/returnAddressTests.xml

@@ -7,6 +7,10 @@
 			http://www.springframework.org/schema/integration
 			http://www.springframework.org/schema/integration/spring-integration-1.0.xsd">
 
+	<si:poller id="poller" default="true">
+		<si:interval-trigger interval="50"/>
+	</si:poller>
+
 	<si:channel id="channel1"/>
 	<si:channel id="channel2">
 		<si:queue capacity="5"/>