INT-2536 Create 2.2 Schemas

Add 2.2 versions of module schemas.

JMX is already covered by an existing pull request.

INT-2536 Schema Check

Bump version for schema check in
AbstractIntegrationNamespaceHandler.

INT-2536 Remove Schema Versions

Some test config files had 2.1 versioned schemas.

spring-integration-core/src/main/java/org/springframework/integration/config/xml/AbstractIntegrationNamespaceHandler.java

@@ -42,7 +42,7 @@ import org.springframework.util.StringUtils;
  */
 public abstract class AbstractIntegrationNamespaceHandler implements NamespaceHandler {
 
-	private static final String VERSION = "2.1";
+	private static final String VERSION = "2.2";
 
 	public static final String CHANNEL_INITIALIZER_BEAN_NAME = "channelInitializer";
 

spring-integration-core/src/main/resources/META-INF/spring.schemas

@@ -1,4 +1,5 @@
 http\://www.springframework.org/schema/integration/spring-integration-1.0.xsd=org/springframework/integration/config/xml/spring-integration-1.0.xsd
 http\://www.springframework.org/schema/integration/spring-integration-2.0.xsd=org/springframework/integration/config/xml/spring-integration-2.0.xsd
 http\://www.springframework.org/schema/integration/spring-integration-2.1.xsd=org/springframework/integration/config/xml/spring-integration-2.1.xsd
-http\://www.springframework.org/schema/integration/spring-integration.xsd=org/springframework/integration/config/xml/spring-integration-2.1.xsd
+http\://www.springframework.org/schema/integration/spring-integration-2.2.xsd=org/springframework/integration/config/xml/spring-integration-2.2.xsd
+http\://www.springframework.org/schema/integration/spring-integration.xsd=org/springframework/integration/config/xml/spring-integration-2.2.xsd