add option to keep effects running even without input

include/config_mgr.h

@@ -163,6 +163,16 @@ public:
 		return( m_recentlyOpenedProjects );
 	}
 
+	const bool isAutoquitDisabled() const
+	{
+		return m_isAutoquitDisabled;
+	}
+
+	void setAutoquitDisabled( bool value )
+	{
+		m_isAutoquitDisabled = value;
+	}
+
 	void addRecentlyOpenedProject( const QString & _file );
 
 	const QString & value( const QString & _class,
@@ -209,6 +219,7 @@ private:
 	QString m_backgroundArtwork;
 	QStringList m_recentlyOpenedProjects;
 
+	bool m_isAutoquitDisabled;
 
 	typedef QVector<QPair<QString, QString> > stringPairVector;
 	typedef QMap<QString, stringPairVector> settingsMap;

include/setup_dialog.h

@@ -110,6 +110,7 @@ private slots:
 	void toggleAnimateAFP( bool _enabled );
 	void toggleNoteLabels( bool en );
 	void toggleDisplayWaveform( bool en );
+	void toggleDisableAutoquit( bool en );
 
 
 private: