SLING-6411 Upgrade Karaf to 4.1

use Karaf 4.1.0

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1783361 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index b23e6e7..2e08d47 100644
--- a/pom.xml
+++ b/pom.xml
@@ -38,7 +38,7 @@
   <!-- https://github.com/apache/karaf/blob/master/assemblies/apache-karaf/pom.xml -->
 
   <properties>
-    <org.apache.karaf.version>4.1.0-SNAPSHOT</org.apache.karaf.version>
+    <org.apache.karaf.version>4.1.0</org.apache.karaf.version>
     <jna.version>4.2.2</jna.version>
     <servicemix.specs.version>2.7.0</servicemix.specs.version>
     <xerces.version>2.11.0_1</xerces.version>