Changes for this release:

  * Change the schema and filter to allow searches on x-properties.

  * Add a reindex operation which reindexes all the data in place. Used when ES schema changes.

  * Add an indexstats operation to get counts for a named index

  * Add a setProdAlias operation. Rebuild index no longer automatically makes new index prod. This also allows us to back off the index.

  * Removed the principal path elements from the basic config. Changing them is always a bad idea so they may as well be fixed.

  * Extra operations added to cli to reindex and change indexes