SetSavedToDisk in Save(), not in SM_SaveSuccessful. When we save the

whole file, all steps are saved to disk; we were only marking the
active steps.  This sequence would cause steps to be wrongly deleted:
 1: create easy and medium steps for one steps type; save
 2: on another steps type, edit easy steps which were autogenned from the above
        change the steps
 3: f6 to change to medium steps steps which were autogenned from the above
 4: menu -> save
        This will save all data, but only medium will be marked saved to disk.
 5: f5 to change back to easy steps
 6: menu -> exit
        This will delete the easy steps, because they were not marked saved to disk.

stepmania/src/NotesWriterSM.cpp

@@ -195,7 +195,7 @@ static RString GetSMNotesTag( const Song &song, const Steps &in, bool bSavingCac
 	return JoinLineList( lines );
 }
 
-bool NotesWriterSM::Write( RString sPath, const Song &out, bool bSavingCache )
+bool NotesWriterSM::Write( RString sPath, const Song &out, const vector<Steps*>& vpStepsToSave, bool bSavingCache )
 {
 	/* Flush dir cache when writing steps, so the old size isn't cached. */
 	FILEMAN->FlushDirCache( Dirname(sPath) );
@@ -229,19 +229,11 @@ bool NotesWriterSM::Write( RString sPath, const Song &out, bool bSavingCache )
 	}
 
 	//
-	// Save all Steps for this file
+	// Save specified Steps to this file
 	//
-	const vector<Steps*>& vpSteps = out.GetAllSteps();
-	FOREACH_CONST( Steps*, vpSteps, s ) 
+	FOREACH_CONST( Steps*, vpStepsToSave, s ) 
 	{
 		const Steps* pSteps = *s;
-		if( pSteps->IsAutogen() )
-			continue; /* don't write autogen notes */
-
-		/* Only save steps that weren't loaded from a profile. */
-		if( pSteps->WasLoadedFromProfile() )
-			continue;
-
 		RString sTag = GetSMNotesTag( out, *pSteps, bSavingCache );
 		f.PutLine( sTag );
 	}