Fix bug 281133: if adding a page with no title to bookmarks, the Add Bookmarks dialog would never show up because we threw an exception trying to set a text field with a nil string. Now, use the url if the title is empty.

camino/src/bookmarks/BookmarkViewController.mm

@@ -417,7 +417,8 @@ static const int kDisabledQuicksearchPopupItemTag = 9999;
   NSTextField* textField  = [mBrowserWindowController getAddBookmarkTitle];
   NSString* bookmarkTitle = titleString;
   NSString* cleanedTitle  = [bookmarkTitle stringByReplacingCharactersInSet:[NSCharacterSet controlCharacterSet] withString:@" "];
-
+  if (!cleanedTitle)
+    cleanedTitle = urlString;
   [textField setStringValue: cleanedTitle];
 
   [mBrowserWindowController cacheBookmarkVC: self];