INT-3705: Improve Messaging Annotations handling

JIRA: https://jira.spring.io/browse/INT-3705

* Add validation for annotation attributes which must be populated directly on the `MessageHandler` `@Bean` using setters
* Add `sendTimeout()` annotation attribute for all Messaging Annotations
* Remove `DEFAULT_SEND_TIMEOUT = 1000L` from `AbstractCorrelatingMessageHandler` to make its component consistent with all other
`AbstractMessageProducingHandler` implementation.
* Fix XSD docs and Reference Manual to say that default `send-timeout` for `AbstractMessageProducingHandler` components is `-1`, not `one second`
* Make all Messaging Annotations attributes as `String` to allow to configure through the Property Placeholder options
* Fix a couple of typos

Polishing

spring-integration-ip/src/main/java/org/springframework/integration/ip/tcp/TcpOutboundGateway.java

@@ -134,7 +134,7 @@ public class TcpOutboundGateway extends AbstractReplyProducingMessageHandler
 				throw new MessageTimeoutException(requestMessage, "Timed out waiting for response");
 			}
 			if (logger.isDebugEnabled()) {
-				logger.debug("Respose " + replyMessage);
+				logger.debug("Response " + replyMessage);
 			}
 			return replyMessage;
 		}
@@ -301,7 +301,7 @@ public class TcpOutboundGateway extends AbstractReplyProducingMessageHandler
 		/**
 		 * We have a race condition when a socket is closed right after the reply is received. The close "error"
 		 * might arrive before the actual reply. Overwrite an error with a good reply, but not vice-versa.
-		 * @param reply
+		 * @param reply the reply message.
 		 */
 		public void setReply(Message<?> reply) {
 			if (this.reply == null) {