baseUrl is changed to v1.15.0

Author: ihorman

manifest.jps

@@ -1,7 +1,7 @@
 type: install
 version: 1.5
 id: kubernetes
-baseUrl: https://raw.githubusercontent.com/jelastic-jps/kubernetes/master
+baseUrl: https://raw.githubusercontent.com/jelastic-jps/kubernetes/v1.15.0
 description:
   text: /text/description-kube.md
   short: Kubernetes Cluster