'Quit' button in add_file_source_dialog doesn't work

Thanks for the fix! I've applied it to trunk.

This bug was fixed in the package usb-creator - 0.2.6

---------------
usb-creator (0.2.6) karmic; urgency=low

  [ Evan Dandrea ]
  * Ignore 0 byte devices. Thanks Roderick B. Greening!
  * Close the file chooser when Cancel is selected (LP: #426430). Thanks
    Severin Heiniger!
  * Ellipsize long text strings in the GTK+ treeviews (LP: #424883).
  * Make sure the ISO image gets unmounted when the install succesfully
    completes (LP: #414821).
  * Re-enable the destination status message.
  * Fix broken free space update.
  * Don't report disks as having 0 B free space. It's confusing.
  * Updated translations from Launchpad.

  [ Roderick B. Greening ]
  * Make kde frontend call detect_devices from private ref (self.__backend).
  * Add update_loop timer to mirror gtk frontend
  * Fix Makefile to include ./bin/usb-creator-* for translations
  * Update kde frontend and ui to provide better translations in line with
    gtk frontend.
  * Add the translation script (Messages.sh) for kde .pot file generation
  * Bump version in setup.py, kde_about.py, usb-creator-gtk, and man to 0.2.6
  * Enforce a MAX_PERSISTENCE of 4GB, otherwise dd fails tring to create
    a file > 4GB
  * Add the destination status message to kde frontend.
  * Update man pages
  * Add unmount ISO call to kde frontend
  * Use id-label instead of partition-label in devicekit backend

  [ Harald Sitter ]
  * Bump standards version to 3.8.3
  * Fix spelling GTK -> GTK+
  * Don't exceed 80 characters in control file
  * Don't exceed 80 characters in changelog file
  * KDE UI:
    + Backend expects str for add_image, so do a type conversion from QString

  [ Jonathan Riddell ]
  * kde_about.py: Use correct translations catalogue
  * Extract strings for KDE frontend into .pot file

 -- Evan Dandrea <email address hidden> Tue, 15 Sep 2009 18:26:23 +0100