Archive format schema changed
Changes according to serialization format: https://github.com/diaspora/diaspora/blob/develop/app/serializers/export/user_serializer.rb
I picked exproted profile data and fed it to http://jsonschema.net/
"content" property renamed to "user" so to be closer to the serializer.
"email" is moved out of the "user" object, because the section will most probably be encrypted by a passphrase while we may want to access the email address before a user ever enter the passphrase.
"private_key" property is added in the "user" object.
I'm not sure if what there left is diaspora* specific and what isn't.