NOJIRA fix elasticsearch generate config and per table reindexing

I'm creating this PR against master-fix so that it can work its way into develop. Let me know if you want me to rebase it against develop.

* Support reindexing of indivudual tables in ElasticSearch
 - `caUtils rebuild-index -t ca_objects` was blowing away all indexes and then reindexing objects. I briefly looked into doing this for Solr but quickly got lost.
* Use correct configuration for elasticsearch if not in bootstrap
 - 81a5250 contained incorrect setting name for the default values. This changes them to what they used to be.