use Sling Parent 30-SNAPSHOT

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1784871 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 3d4e6b9..0ca8219 100644
--- a/pom.xml
+++ b/pom.xml
@@ -24,7 +24,7 @@
   <parent>
     <groupId>org.apache.sling</groupId>
     <artifactId>sling</artifactId>
-    <version>29</version>
+    <version>30-SNAPSHOT</version>
     <relativePath />
   </parent>