Added "keep-alive" for database

src/main/java/netneutrality/db/DBController.java

@@ -5,8 +5,10 @@ import java.lang.reflect.Modifier;
 import java.sql.SQLException;
 import java.util.HashMap;
 import java.util.Set;
+import java.util.concurrent.TimeUnit;
 
 import netneutrality.MusicBot;
+import netneutrality.ThreadManager;
 import org.reflections.Reflections;
 
 public class DBController {
@@ -72,13 +74,13 @@ public class DBController {
 		if (controllers.isEmpty())
 			loadControllers();
 
-		/*ThreadManager.scheduler.scheduleWithFixedDelay(() -> {
+		ThreadManager.scheduler.scheduleWithFixedDelay(() -> {
 			try {
 				DBController.get().prepareAndExecute("SELECT 1;");
 			} catch (SQLException e) {
 				e.printStackTrace();
 			}
-		}, 60, 60, TimeUnit.SECONDS);*/
+		}, 0, 120, TimeUnit.SECONDS);
 	}
 	
 	/**