add new maximize option

src/sernatur.vala

@@ -39,7 +39,10 @@ namespace Sernatur {
 		 */
 		public override void activate () {
 			window = new MainWindow (this);
-			//window.maximize ();
+			GLib.Settings settings = new GLib.Settings ("cl.cromer.ubb.sernatur");
+			if (settings.get_boolean ("maximized")) {
+				window.maximize ();
+			}
 			try {
 				window.icon = IconTheme.get_default ().load_icon ("sernatur", 48, 0);
 			}