Merge branch 'develop' into Better_Rounds_Handling

Conflicts:
	Vocaluxe/Base/CGame.cs
	Vocaluxe/Screens/CScreenNames.cs

VocaluxeLib/Songs/CLineBase.cs

@@ -74,7 +74,11 @@ namespace VocaluxeLib.Songs
         #endregion Properties
 
         #region Methods
-        //Find last note with StartBeat<=Beat
+        /// <summary>
+        /// Find last note with StartBeat<=Beat
+        /// </summary>
+        /// <param name="beat"></param>
+        /// <returns>Note index of last note with StartBeat<=Beat or -1 if all notes start after beat</returns>
         public int FindPreviousNote(int beat)
         {
             //If no notes -> No previous note