[meld] meldwindow: 'Fix' property warning

[Kai Willadsen <kaiw src gnome org>]

commit e6de2016b59b198611e9d39079fe69e342ce0f56
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sun Apr 27 09:42:48 2014 +1000

    meldwindow: 'Fix' property warning

 meld/meldwindow.py |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/meld/meldwindow.py b/meld/meldwindow.py
index 6046b4d..2b6f3a6 100644
--- a/meld/meldwindow.py
+++ b/meld/meldwindow.py
@@ -358,6 +358,8 @@ class MeldWindow(gnomeglade.Component):
         # Only update the window title if the current page is active
         if self.notebook.get_current_page() == self.notebook.page_num(page):
             self.widget.set_title(text + " - Meld")
+        if isinstance(text, unicode):
+            text = text.encode('utf8')
         self.notebook.child_set_property(page, "menu-label", text)
 
         actiongroup = self.tab_switch_actiongroup