Mounts the parent of "datadir" AND "snapdir"

Fixes #89, "logs" which are actually data would end up outside the mount.

Zookeeper's startup logs are more clear than the property file entries:
INFO Created server with tickTime 2000 minSessionTimeout 4000 maxSessionTimeout 40000 datadir /var/lib/zookeeper/log/version-2 snapdir /var/lib/zookeeper/data/version-2

Author: solsson

zookeeper/50pzoo.yml

@@ -65,7 +65,7 @@ spec:
         - name: config
           mountPath: /etc/kafka
         - name: data
-          mountPath: /var/lib/zookeeper/data
+          mountPath: /var/lib/zookeeper
       volumes:
       - name: configmap
         configMap:

zookeeper/51zoo.yml

@@ -68,7 +68,7 @@ spec:
         - name: config
           mountPath: /etc/kafka
         - name: data
-          mountPath: /var/lib/zookeeper/data
+          mountPath: /var/lib/zookeeper
       volumes:
       - name: configmap
         configMap: