Upgrade to Spring Integration 4.0.6.RELEASE

Closes gh-2358

Author: wilkinsona

spring-boot-dependencies/pom.xml

@@ -103,7 +103,7 @@
 		<spring-batch.version>3.0.2.RELEASE</spring-batch.version>
 		<spring-data-releasetrain.version>Dijkstra-SR4</spring-data-releasetrain.version>
 		<spring-hateoas.version>0.16.0.RELEASE</spring-hateoas.version>
-		<spring-integration.version>4.0.5.RELEASE</spring-integration.version>
+		<spring-integration.version>4.0.6.RELEASE</spring-integration.version>
 		<spring-loaded.version>1.2.1.RELEASE</spring-loaded.version>
 		<spring-mobile.version>1.1.3.RELEASE</spring-mobile.version>
 		<spring-security.version>3.2.5.RELEASE</spring-security.version>