Easy way to import test data

[erinspace]

Right now, in order to test SHARE locally, or on the OSF, it's a little bit cumbersome - you have to have cassandra running, and actually scrape from a real source.

It'd be great - as per @sloria's suggestion - if we could import data into just elasticsearch for quickstart local test purposes. This would be pretty simple as we already have VCRs with pre-recorded data. Just need to make the pipeline simpler!