Support Text Search

[dylanmcreynolds]

It would be nice for the AIMM Tiled implementations to support full text search. I think this requires a couple things:

• Enhance the adapters to register text search
• Add a text index to Mongo. As a pattern, databroker add indexes on init of database update tool (which is actually suitcase. If the index is already there, no error is thrown.
• As a bonus to enhance the search, we could add a field to common called "description" and add to that a tokenized version of the dataset name. So As-K-1 would become As K 1. This would make As, K and 1 searchable with Mongo's text search.