Added try/catch to landmark and model loading

Also removed a few trailing whitespaces

examples/fit-model.cpp

@@ -147,8 +147,22 @@ int main(int argc, char *argv[])
 
 	// Load the image, landmarks, LandmarkMapper and the Morphable Model:
 	Mat image = cv::imread(imagefile.string());
-	auto landmarks = read_pts_landmarks(landmarksfile.string());
-	morphablemodel::MorphableModel morphable_model = morphablemodel::load_model(modelfile.string());
+	LandmarkCollection<cv::Vec2f> landmarks;
+	try {
+		landmarks = read_pts_landmarks(landmarksfile.string());
+	}
+	catch (const std::runtime_error& e) {
+		cout << "Error reading the landmarks: " << e.what() << endl;
+		return EXIT_FAILURE;
+	}
+	morphablemodel::MorphableModel morphable_model;
+	try {
+		morphable_model = morphablemodel::load_model(modelfile.string());
+	}
+	catch (const std::runtime_error& e) {
+		cout << "Error loading the Morphable Model: " << e.what() << endl;
+		return EXIT_FAILURE;
+	}
 	core::LandmarkMapper landmark_mapper = mappingsfile.empty() ? core::LandmarkMapper() : core::LandmarkMapper(mappingsfile);
 
 	// Draw the loaded landmarks: