tomahawk: 0.8.3 -> 0.8.4

From the Changelog:
* Fixed drag & drop issues on sidebar.
* Fixed starting Tomahawk with a filename as parameter.
* Update column view when collection changes.
* (Linux) Don't crash on environments with invalid locales.

Signed-off-by: devhell <"^"@regexmail.net>
Closes: #9858
Tested-by: aszlig <[e-mail]>
Tested-by: David Kleuker <[e-mail]>

pkgs/applications/audio/tomahawk/default.nix

···
   quazipQt4 = quazip.override { qt = qt4; };
 in stdenv.mkDerivation rec {
   name = "tomahawk-${version}";
-  version = "0.8.3";
+  version = "0.8.4";
 
   src = fetchurl {
     url = "http://download.tomahawk-player.org/${name}.tar.bz2";
-    sha256 = "0kjzkq21g3jl1lvadsm7gf0zvpbsv208kqf76wg2hnbm4k1a02wj";
+    sha256 = "0j84h36wkjfjbsd7ybyji7rcc9wpjdbl0f1xdcc1g7h0nz34pc0g";
   };
 
   cmakeFlags = [