exclude jclouds-byon as that uses older snakeyaml

isn't used anyway, as brooklyn has its own byon
diff --git a/karaf/features/src/main/filtered-resources/resources/etc/org.apache.karaf.features.xml b/karaf/features/src/main/filtered-resources/resources/etc/org.apache.karaf.features.xml
index b3dd335..34cda9c 100644
--- a/karaf/features/src/main/filtered-resources/resources/etc/org.apache.karaf.features.xml
+++ b/karaf/features/src/main/filtered-resources/resources/etc/org.apache.karaf.features.xml
@@ -275,6 +275,9 @@
         <bundle>mvn:org.eclipse.jetty/jetty-webapp/[9.4,${jetty.version})</bundle>
         <bundle>mvn:org.eclipse.jetty/jetty-xml/[9.4,${jetty.version})</bundle>
 
+        <!-- this needs snakeyaml 1.x, until jclouds 2.6 is released; we don't use it so not a problem -->
+        <bundle>mvn:org.apache.jclouds.api/byon</bundle>
+
     </blacklistedBundles>
 
 </featuresProcessing>