Bytea-backed facet API / bitcounts via javascript plv8
Moved PostgreSQL API into its own schema
Rake tests now load API bindings. Simplified fixtures.
Simplification of SQL-side API
Patch to remove outmoded hack for spawn methods.

(Works with Rails 4.0.3; check on earlier versions).
Added binstubs directory (Rails 4.0 support)
Indexing API in AbstractFacet. Additional documentation
Revisions to migrations, aimed to streamline deploys on Heroku
Code review. Additional API documentation