Merge pull request #125 from demonpig/fix-transient_window

Fix warning message about transient window

Author: Philip-Scott

src/Widgets/NewNotebookDialog.vala

@@ -32,6 +32,7 @@ public class ENotes.NotebookDialog : Gtk.Dialog {
 
     public NotebookDialog (Notebook? notebook = null) {
         this.notebook = notebook;
+        set_transient_for (window);
         build_ui ();
         connect_signals ();
 

src/Widgets/PreferencesDialog.vala

@@ -33,6 +33,7 @@ public class ENotes.PreferencesDialog : Gtk.Dialog {
     private Gtk.Switch keep_sidebar_switch;
 
     public PreferencesDialog () {
+        set_transient_for (window);
         build_ui ();
         connect_signals ();
     }