Set persona.audiences to *.encodedcc.org to avoid extra changes for demo machines on aws.
Run mac2unix, normalize with trailing newline.
Merge branch 'fix-test-data-line-endings' into experiment-files-650

Conflicts:
	src/encoded/tests/data/inserts/dataset.tsv
	src/encoded/tests/data/inserts/experiment.tsv
Remove additional_files which are already homed in the experiment.