OPEN - issue BATCH-429: Combine the core and execution modules

http://jira.springframework.org/browse/BATCH-429

Collapse step/support packages to remove cycle.

spring-batch-samples/src/main/java/org/springframework/batch/sample/step/support/NoopStepInterruptionPolicy.java

@@ -1,7 +1,7 @@
 package org.springframework.batch.sample.step.support;
 
 import org.springframework.batch.core.JobInterruptedException;
-import org.springframework.batch.core.step.support.StepInterruptionPolicy;
+import org.springframework.batch.core.step.StepInterruptionPolicy;
 import org.springframework.batch.repeat.RepeatContext;
 
 public class NoopStepInterruptionPolicy implements StepInterruptionPolicy {