Client now starts up cleanly, but no way to add accounts

hrafn.py

@@ -72,7 +72,7 @@ class Hrafn():
         if not self.db.has_key('active_user'):
             try:
                 self.db['active_user'] = self.accounts.keys()[0]
-            except KeyError:
+            except IndexError:
                 self.db['active_user'] = None
 
 
@@ -149,6 +149,7 @@ class Hrafn():
 
 
     def update_account_label(self):
+        if self.username:
             self.account_label.set_text(self.username + ': ')