Display status panel even if no organisms

Now have two cases for collecting and displaying the status panel data: with and without organisms. Also deciding whether to display status panel or not based on existence of lot_reviews instead of existence of characterizations.
Get targets from lot_reviews

Don’t get targets from characterizations anymore — get them from the lot_reviews. Because of this, organism objects are now embedded in target objects in lot_reviews.
Display characterization standards documents

Functionality was there, but the front-end stopped receiving characterization documents. Restored that.
Sort antibody characterizations by target/species

Also display standards document if it exists, instead of if it exists and the status is compliant or non-compliant.
Biosample term names of 'not specified' blank

In the antibody status panel, if any biosample_term_name is 'not specified,' it displays as blank.
Temporary(?) workaround for Travis failure

When putting arrays as last element of schema columns, Travis test fails in test_collections_anon. Changed to individual strings in antibody_lot.json.