use OutputDevice to set fileinfo,

use new connect function,

QtMeshViewer/Header/OglViewerWidget.h

@@ -58,7 +58,6 @@ private:
 // functions
 private:
 	void initShaders();
-	void setConnections();
 	void resetView();
 	void updateLightPosition();
 
@@ -89,8 +88,5 @@ public slots:
 	void setAttFac(double value);
 	void setAmbCoef(double value);
 
-// signals
-signals:
-	void loadFile(QString);
 };