INTSAMPLES-89 - Upgrade to Spring Integration 2.2 RC3

* Test samples
* Polish documentation
* Polish code

For reference see: https://jira.springsource.org/browse/INTSAMPLES-89

intermediate/multipart-http/src/main/java/org/springframework/integration/samples/multipart/MultipartRequestGateway.java

@@ -1,5 +1,17 @@
-/**
- * 
+/*
+ * Copyright 2002-2012 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 package org.springframework.integration.samples.multipart;
 
@@ -9,9 +21,10 @@ import org.springframework.http.HttpStatus;
 
 /**
  * @author ozhurakousky
+ * @author Gunnar Hillert
  *
  */
 public interface MultipartRequestGateway {
 
-	public HttpStatus postMultipartRequest(Map<String, Object> multipartRequest);
+	HttpStatus postMultipartRequest(Map<String, Object> multipartRequest);
 }