migrated to Spring 4.1.1.RELEASE

Also had to make changes because Spring now uses com.rometools for RSS
feeds
See here for more details: https://jira.spring.io/browse/SPR-11893

pom.xml

@@ -16,7 +16,7 @@
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 
 		<!-- Spring -->
-		<spring-framework.version>4.0.6.RELEASE</spring-framework.version>
+		<spring-framework.version>4.1.1.RELEASE</spring-framework.version>
 		<spring-data-jpa.version>1.6.2.RELEASE</spring-data-jpa.version>
 
 
@@ -45,7 +45,7 @@
 		<slf4j.version>1.7.7</slf4j.version>
 
 		<!-- RSS -->
-		<rome.version>1.0</rome.version>
+		<rome.version>1.5.0</rome.version>
 
 		<!-- Test -->
 		<junit.version>4.11</junit.version>
@@ -187,7 +187,7 @@
 
 		<!-- used for Atom -->
 		<dependency>
-			<groupId>rome</groupId>
+			<groupId>com.rometools</groupId>
 			<artifactId>rome</artifactId>
 			<version>${rome.version}</version>
 		</dependency>

src/main/java/org/springframework/samples/petclinic/web/VetsAtomView.java

@@ -15,20 +15,19 @@
  */
 package org.springframework.samples.petclinic.web;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
+import com.rometools.rome.feed.atom.Entry;
+import com.rometools.rome.feed.atom.Feed;
+import com.rometools.rome.feed.atom.Content;
 import org.springframework.samples.petclinic.model.Vet;
 import org.springframework.samples.petclinic.model.Vets;
 import org.springframework.web.servlet.view.feed.AbstractAtomFeedView;
 
-import com.sun.syndication.feed.atom.Content;
-import com.sun.syndication.feed.atom.Entry;
-import com.sun.syndication.feed.atom.Feed;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
 
 /**
  * A view creating a Atom representation from a list of Visit objects.