Skip stack level hook for stack if prior stack level change set hook succeeded

For stack level hooks, customers are able to return a new status that allow stack level hooks that execute against a stack to skip with a successful status. The idea is that if a stack hook invoked against a change set succeeds, there is no need to invoke against the stack once the change set is processed.

Author: brianlaoaws

pom.xml

@@ -491,7 +491,7 @@
                     <plugin>
                         <groupId>org.sonatype.plugins</groupId>
                         <artifactId>nexus-staging-maven-plugin</artifactId>
-                        <version>1.6.13</version>
+                        <version>1.6.8</version>
                         <extensions>true</extensions>
                         <configuration>
                             <serverId>sonatype-nexus-staging</serverId>