Use released version of launchpad base

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@938826 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 012b6b8..0324e5c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -365,7 +365,7 @@
         <dependency>
             <groupId>org.apache.sling</groupId>
             <artifactId>org.apache.sling.launchpad.base</artifactId>
-            <version>2.1.1-SNAPSHOT</version>
+            <version>2.2.0</version>
             <classifier>app</classifier>
         </dependency>