Added host_organism as required to regestier antibody_lot.
Merge branch 'master' into host_organism-1274
Update library.json
Update library.json

add in dependancies for lot
Update library.json

No trailing commas
Merge pull request #255 from ENCODE-DCC/host_organism-1274

Host organism required in antibody_lot #1274
Merge pull request #280 from ENCODE-DCC/1341_library_dependancies

1341 library dependancies
Merge remote-tracking branch 'origin/master' into 1444-status-novs