INTSAMPLES-127 Polishing

- PR Comments
- Switch to Jackson2
- Fix oxm config

Polishing

INTSAMPLES-127 Update to SI 4.0.0.RC1

INTSAMPLES-127 Remove Servlet Dependency

travel sample; see INT-3350.

INTSAMPLES-127 Update Samples to SI 4.0.0

JIRA: https://jira.spring.io/browse/INTSAMPLES-127

Created `maint` branch for ongoing SI 3.0.x samples.

intermediate/multipart-http/src/test/java/org/springframework/integration/samples/multipart/MultipartClientForHttpOutboundClient.java

@@ -19,6 +19,7 @@ import java.util.HashMap;
 import java.util.Map;
 
 import org.apache.log4j.Logger;
+
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 import org.springframework.core.io.ClassPathResource;
@@ -29,7 +30,7 @@ import org.springframework.http.HttpStatus;
  *
  */
 public class MultipartClientForHttpOutboundClient {
-	
+
 	private static Logger logger = Logger.getLogger(MultipartClientForHttpOutboundClient.class);
 	private static String resourcePath = "org/springframework/integration/samples/multipart/spring09_logo.png";