tests: owner not needed in any tests
server: refactored code into _create_new_ebook method
server: deduplicate on authortitle, dont allow multiple versions from same user
salt: updated rethinkdb to 0.15 refs mafrosis/salt-formulae@6e74f74
fixup! 7118e2fe
server: hashlib doesn't return unicode
server: ebook_id sent in metadata on incoming books