Remove unneeded and damaging class from references
Update file.json
Merge remote-tracking branch 'origin/master' into 1809-indented-dd
Note aws requirement
Merge pull request #447 from ENCODE-DCC/1846-HMM

Update file.json
Merge pull request #449 from ENCODE-DCC/1809-indented-dd

1809 dd element after experiment reference list was indented
Merge pull request #450 from ENCODE-DCC/1786-library-spikeins

1786 library spikeins
Merge remote-tracking branch 'origin/master' into 1786-library-spikeins-ui