Pristine installation with an empty content for etc/drools-engine.d/ncs which is invalid

After installing latest snapshots for Meridian 2017.1.0, I found that the /opt/opennms/etc/drools-engine.d/ncs directory is created with an empty content.

When you enable the Correlator engine, Drools expects to find certain files inside each directory created in /opt/opennms/etc/drools-engine.d/ (because each directory here is considered a Drools Engine).

I suggest to fix the building process to avoid having the ncs directory, and deploy an empty etc/drools-engine.d/