added .gitignore to bin

src/application/Main.java

@@ -71,7 +71,7 @@ public class Main extends Application {
 			mainWindowController = loader.getController();	//Link of FXMLController and controller class
 			mainWindowController.setMain(this);	//call setMain
 			
-			//get os and the right paths
+			//get OS and the right paths
 			if(System.getProperty("os.name").equals("Linux")){
 				directory = new File(dirLinux);
 				configFile = new File(dirLinux + "/config.xml");