kibana: allow use of server.basePath
kibana: allow use of server.basePath

When using server.basePath a dynamic bundle optimization will be started.
This job needs write access to /usr/share/kibana/optimize/bundles.

Change-Id: Ieaae79a5940f3972a8067814a1113ef635970875

dardelean/kolla-ansible,dardelean/kolla-ansible,dardelean/kolla-ansible