Add myself (turion) to the maintainers list for several packages

Following nh2's advice, I want to be more involved in nixpkgs,
and I'll start to review changes to programs that are important to me,
and that didn't have a long list of maintainers yet.

pkgs/applications/misc/krusader/default.nix

@@ -20,7 +20,7 @@ in mkDerivation rec {
     description = "Norton/Total Commander clone for KDE";
     license = licenses.gpl2;
     homepage = "http://www.krusader.org";
-    maintainers = with maintainers; [ sander ];
+    maintainers = with maintainers; [ sander turion ];
   };
 
   nativeBuildInputs = [ extra-cmake-modules kdoctools wrapGAppsHook ];