Upgrade to Spring Batch 3.0.9

Fixes gh-290

Author: kazuki43zoo

pom.xml

@@ -133,7 +133,7 @@
     <dependency>
       <groupId>org.springframework.batch</groupId>
       <artifactId>spring-batch-infrastructure</artifactId>
-      <version>3.0.8.RELEASE</version>
+      <version>3.0.9.RELEASE</version>
       <scope>provided</scope>
     </dependency>