Generic schema audit.
Some more tests for schema validation audit.
biosample type audit was added to catch missing biosample type
Merge pull request #410 from ENCODE-DCC/1806-biosample_type_audit

#1806- biosample type audit was added to catch missing biosample type
Merge pull request #401 from ENCODE-DCC/generic-schema-audit

Generic schema audit.
Multiple antibody links, not mutliple antibodies

Instead of having multiple antibody search results linking to the same antibody page, have one antibody search result with multiple links to the same antibody page. Move the status indicators after each antibody link.
Merge remote-tracking branch 'origin/master' into 1713-antibody-lot