From: Jan Szejko <janek37@gmail.com>
Date: Thu, 21 Dec 2017 09:40:23 +0000 (+0100)
Subject: add slug back to filter-books api
X-Git-Url: https://git.mdrn.pl/wolnelektury.git/commitdiff_plain/c34d6e5cea353a47408db1f7e78574b4f1e9c7e7?ds=inline;hp=c34d6e5cea353a47408db1f7e78574b4f1e9c7e7

add slug back to filter-books api
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