BGA commands are being played twice, because both BGALayer

and ActorUtil are parsing them and BGALayer was sending its commands
to its children.  Don't do that; just use the ActorUtil parsing.  (This seems to
work for all BGAs I've tried so far, but I'm not yet quite sure it's correct.)
This seems to fix transitions not showing up, but I'm not sure why.

stepmania/src/BGAnimationLayer.cpp

@@ -483,7 +483,7 @@ void BGAnimationLayer::LoadFromIni( const CString& sAniDir_, const IniKey& layer
 			m_Type = TYPE_SPRITE;
 		}
 	}
-
+#if 0
 	{
 		for( IniKey::const_iterator i = layer.begin();
 			 i != layer.end(); ++i)
@@ -505,7 +505,7 @@ void BGAnimationLayer::LoadFromIni( const CString& sAniDir_, const IniKey& layer
 			m_mapNameToCommands[sCmdName] = cmds;
 		}
 	}
-		
+#endif
 
 	layer.GetValue( "CommandRepeatSeconds", m_fRepeatCommandEverySeconds );
 	m_fSecondsUntilNextCommand = m_fRepeatCommandEverySeconds;
@@ -1006,9 +1006,9 @@ void BGAnimationLayer::LoseFocus()
 
 void BGAnimationLayer::PlayCommand( const CString &sCommandName )
 {
-	// Don't call base version.
-	//Actor::PlayCommand( sCommandName );
-	
+	ActorFrame::PlayCommand( sCommandName );
+
+#if 0
 	for( unsigned i=0; i<m_SubActors.size(); i++ )
 		m_SubActors[i]->RunCommands( ParseCommands("playcommand,"+sCommandName) );
 
@@ -1021,6 +1021,7 @@ void BGAnimationLayer::PlayCommand( const CString &sCommandName )
 
 	for( unsigned i=0; i<m_SubActors.size(); i++ )
 		m_SubActors[i]->RunCommands( it->second );
+#endif
 }
 
 /*