Update to latest parent pom and use latest releases in launchpad

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1447147 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 3f4f8c9..f320b8b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.sling</groupId>
         <artifactId>sling</artifactId>
-        <version>14</version>
+        <version>15</version>
         <relativePath>../../../parent/pom.xml</relativePath>
     </parent>