Update featherpad to rev 11 via SR 783168
    
    https://build.opensuse.org/request/show/783168
    by user jubalh + dimstar_suse
    - Update to 0.13.0:
      * Support for syntax color customization, with separate settings
        for light and dark backgrounds.
      * Color value of whitespaces can be customized, in case they're shown.
      * Allow dash and some other characters in URLs.
      * Considered extra cases of valid ampersands in HTML.
      * Yet smarter Shift+Enter with alphabetical lists.
      * Removed QCoreApplication::processEvents() to prevent a rare crash.
      * Remember cursor's horizontal pixel position before Backspace/Enter
        and restore it after Down/Up.
      * A few fixes.