Fix non-UTF-8 symbols

https://build.spring.io/browse/INT-B43-113/

spring-integration-core/src/main/java/org/springframework/integration/aggregator/AbstractCorrelatingMessageHandler.java

@@ -81,7 +81,7 @@ import org.springframework.util.CollectionUtils;
  * @author Gary Russell
  * @author Artem Bilan
  * @author David Liu
- * @author Enrique Rodr<EFBFBD>guez
+ * @author Enrique Rodriguez
  * @since 2.0
  */
 public abstract class AbstractCorrelatingMessageHandler extends AbstractMessageProducingHandler

spring-integration-core/src/main/java/org/springframework/integration/annotation/MessagingGateway.java

@@ -25,7 +25,7 @@ import java.lang.annotation.Target;
 /**
  * A stereotype annotation to provide an Integration Messaging Gateway Proxy
  * ({@code <gateway/>}) as an abstraction over the messaging API. The target
- * application<EFBFBD>s business logic may be completely unaware of the Spring Integration
+ * application's business logic may be completely unaware of the Spring Integration
  * API, with the code interacting only via the interface.
  * <p>
  * Important: The {@link IntegrationComponentScan} annotation is required along with
@@ -78,7 +78,7 @@ public @interface MessagingGateway {
 	/**
 	 * Provides the amount of time dispatcher would wait to send a {@code Message}.
 	 * This timeout would only apply if there is a potential to block in the send call.
-	 * For example if this gateway is hooked up to a {@code QueueChannel}.<EFBFBD>
+	 * For example if this gateway is hooked up to a {@code QueueChannel}.
 	 * @return the suggested timeout in milliseconds, if any
 	 */
 	String defaultRequestTimeout() default "-9223372036854775808";