API-3622 brainstorming settings config for prospector.

gistfile1.txt

# maybe we can handle the cascade db side like so. 

select idx(array[22740185, 19161654], notification_id), * from notification where notification_id in (19161654, 52740185) order by idx(array[52740185, 19161654], notification_id) nulls last;

# perhaps we cascade by throwing the contact, agent and mls in a subselect on this collection ordered smartly

prospector_alpha=# select subscriber_id, master_owner_id, r.mls_id from resource r inner join newsfeed f on r.resource_id = f.resource_id where r.resource_id = '20151215223132896052000000' and f.subscription_name in (select subscription_name from newsfeed f2 where subscriber_id in (f.subscriber_id,r.master_owner_id, f.mls_id) and subscription_name = 'Subscription kaplan search ash' limit 1);
       subscriber_id        |      master_owner_id       |           mls_id           
----------------------------+----------------------------+----------------------------
 20150320225609690019000000 | 20150320225609690019000000 | 20141203195816310156000000
 20151215222025934687000000 | 20150320225609690019000000 | 20141203195816310156000000