Update dependencies to latest

This commit brings the dependencies for Spring Cloud Task up to the
latest where appropriate prior to the 1.0.0.RC1 release.

spring-cloud-task-batch/pom.xml

@@ -35,6 +35,12 @@
 			<groupId>org.springframework.batch</groupId>
 			<artifactId>spring-batch-integration</artifactId>
 			<optional>true</optional>
+			<exclusions>
+				<exclusion>
+					<groupId>org.springframework</groupId>
+					<artifactId>spring-core</artifactId>
+				</exclusion>
+			</exclusions>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework</groupId>