Mark files opened with Open dialog as not modified

Author: Zomis

src/main/groovy/net/zomis/brainf/ui/MainController.java

@@ -97,6 +97,7 @@ private void runWith(RunStrategy strategy) {
             TabController tab = createTab(file.getName());
             tab.setCode(GroovyRead.file(file));
             tab.getLoadSave().setFile(file);
+            tab.getLoadSave().notModified();
             tabs.getSelectionModel().selectLast();
         }
     }