fixed bug with file name when creating new file

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/presenter/Presenter.java

@@ -193,7 +193,7 @@ public class Presenter implements IPlugInPort {
 			Project project = new Project();
 			instantiationManager.fillWithDefaultProperties(project);
 			loadProject(project, true);
-			projectFileManager.fireFileStatusChanged();
+			projectFileManager.startNewFile();
 		} catch (Exception e) {
 			LOG.error("Could not create new file", e);
 			view.showMessage("Could not create a new file. Check the log for details.", "Error",

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/presenter/ProjectFileManager.java

@@ -77,6 +77,12 @@ public class ProjectFileManager {
 		xStream.autodetectAnnotations(true);
 		this.messageDispatcher = messageDispatcher;
 	}
+	
+	public void startNewFile() {
+		currentFileName = null;
+		modified = false;
+		fireFileStatusChanged();
+	}
 
 	public void serializeProjectToFile(Project project, String fileName) throws IOException {
 		LOG.info(String.format("saveProjectToFile(%s)", fileName));