[MusicWheel] Added RouletteStopped message, which is broadcast when Roulette is finished and the wheel is locked.

Docs/Changelog_sm5.txt

@@ -9,6 +9,11 @@ ________________________________________________________________________________
 StepMania 5.0 alpha 2 | 201203??
 --------------------------------------------------------------------------------
 
+2012/03/08
+----------
+* [MusicWheel] Added RouletteStopped message, which is broadcast when Roulette
+  is finished and the wheel is locked. [AJ]
+
 2012/03/07
 ----------
 * [ScreenSelectMaster] Now updates choices on player join; it will move the

src/MusicWheel.cpp

@@ -1119,6 +1119,7 @@ void MusicWheel::UpdateSwitch()
 
 			// Send this again so the screen starts sample music.
 			SCREENMAN->PostMessageToTopScreen( SM_SongChanged, 0 );
+			MESSAGEMAN->Broadcast("RouletteStopped");
 		}
 		else
 		{