epriestley@orbital ~/dev/phabricator $ curl https://secure.phabricator.com/api/file.upload \
>     -d api.token=<API-TOKEN-HERE> \
>     -d data_base64=asdf123
{"result":"PHID-FILE-xg3rs5kbafnyw25nhg2u","error_code":null,"error_info":null}