OpenGLController: moved some code around

shader: throw errors

MshViewer/main.cpp

@@ -8,6 +8,8 @@ int main(int argc, char** argv)
 {
 	OpenGLController *scene = OpenGLController::getInstance();
 
+	scene->loadMsh("test.msh");
+
 	do {
 		scene->updateScene();
 	} while (!glfwWindowShouldClose(scene->getWindow()));