changed MethodInvoking Soure and Targt to take a string via a a property methodName (fix for INT-272)

org.springframework.integration/src/main/java/org/springframework/integration/config/MethodInvokingAdapterParser.java

@@ -49,7 +49,7 @@ public class MethodInvokingAdapterParser extends AbstractSingleBeanDefinitionPar
 			throw new ConfigurationException("The 'method' attribute is required.");
 		}
 		builder.addPropertyReference("object", ref);
-		builder.addPropertyValue("method", method);
+		builder.addPropertyValue("methodName", method);
 	}
 
 }

org.springframework.integration/src/main/java/org/springframework/integration/config/annotation/SourceAnnotationPostProcessor.java

@@ -48,7 +48,7 @@ public class SourceAnnotationPostProcessor extends AbstractAnnotationMethodPostP
 	protected MessageSource<?> processMethod(Object bean, Method method, Annotation annotation) {
 		MethodInvokingSource source = new MethodInvokingSource();
 		source.setObject(bean);
-		source.setMethod(method.getName());
+		source.setMethodName(method.getName());
 		return source;
 	}
 

org.springframework.integration/src/main/java/org/springframework/integration/message/MethodInvokingSource.java

@@ -45,7 +45,7 @@ public class MethodInvokingSource implements MessageSource<Object>, Initializing
 		this.object = object;
 	}
 
-	public void setMethod(String method) {
+	public void setMethodName(String method) {
 		Assert.notNull(method, "'method' must not be null");
 		this.method = method;
 	}

org.springframework.integration/src/main/java/org/springframework/integration/util/AbstractMethodInvokingAdapter.java

@@ -20,7 +20,6 @@ import java.lang.reflect.Method;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.core.Ordered;
 import org.springframework.integration.ConfigurationException;