Merge branch 'dbv3_DateAdded' of github.com:flokuep/Vocaluxe into release-0.3

Conflicts:
	Vocaluxe/Base/CDataBase.cs
	Vocaluxe/Base/CSettings.cs
	VocaluxeLib/Menu/SongMenu/CSong.cs

VocaluxeLib/Songs/CSong.cs

@@ -147,6 +147,8 @@ namespace VocaluxeLib.Songs
 
         public readonly List<string> Language = new List<string>();
 
+        public string DateAdded = "";
+
         // Notes
         public readonly CNotes Notes = new CNotes();
 
@@ -240,6 +242,8 @@ namespace VocaluxeLib.Songs
             foreach (string value in song.Language)
                 Language.Add(value);
 
+            DateAdded = song.DateAdded;
+
             Notes = new CNotes(song.Notes);
         }