Spring cleaning

* Remove unused subs
* Move cover urls into subscriptios
* Check if TODOs and FIXMEs are still up to date

test/cljs/airsonic_ui/fixtures.cljs

@@ -12,3 +12,26 @@
                       :version "1.15.0"}}
                 :auth-success {:subsonic-response {:status "ok"
                                                    :version "1.15.0"}}})
+
+(def song
+  {:artistId 42,
+   :path "DJ Koze/DJ Koze - Reincarnations Part 2, The Remix Chapter 2009-2014/14. Apparat - Black Water (DJ Koze Remix).mp3",
+   :suffix "mp3",
+   :isDir false,
+   :bitRate 320,
+   :parent 3556,
+   :albumId 382,
+   :type "music",
+   :created "2017-06-28T19:07:02.000Z",
+   :duration 317,
+   :artist "Apparat",
+   :isVideo false,
+   :size 12850290,
+   :title "Black Water (DJ Koze Remix)",
+   :playCount 0
+   :year 2014,
+   :id 3562,
+   :coverArt 3556,
+   :contentType "audio/mpeg",
+   :album "Reincarnations, Pt. 2 - The Remix Chapter 2009 - 2014",
+   :track 14})