shorter model_documents test. pass.
shorter model_documents test. pass.

using the new small dfr_data.

joncgoodwin/dfrtopics,joncgoodwin/dfrtopics,agoldst/dfrtopics,agoldst/dfrtopics,agoldst/dfrtopics,joncgoodwin/dfrtopics,agoldst/dfrtopics,agoldst/dfrtopics