SLING-4808: treat empty config values as null

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1685733 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index a613c8c..06f8a2e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -407,7 +407,7 @@
         <dependency>
             <groupId>org.apache.sling</groupId>
             <artifactId>org.apache.sling.distribution.core</artifactId>
-            <version>0.1.3-SNAPSHOT</version>
+            <version>0.1.5-SNAPSHOT</version>
         </dependency>
         <dependency>
             <groupId>org.apache.sling</groupId>