Squashed commit of the following:

commit 997c1138f549766d797f1ba6da26e1e8394387e2
Author: emeric <itmfr@yahoo.fr>
Date:   Sat Jan 10 17:50:20 2015 +0100

    Implemented save, load and delete playlists

commit bee08a16b544bb21785c45f083ab7c10e65bfa6e
Author: emeric <itmfr@yahoo.fr>
Date:   Thu Jan 8 23:46:43 2015 +0100

    Reworked the database code layout in order to add playlists

src/database/User.cpp

@@ -17,13 +17,10 @@
  * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-
-#include "User.hpp"
-
+#include "Types.hpp"
 
 namespace Database {
 
-
 // must be ordered
 const std::vector<std::size_t>
 	User::audioBitrates =
@@ -140,7 +137,6 @@ User::getMaxVideoBitrate(void) const
 		return videoBitrates.back();
 }
 
-
 } // namespace Database