* libnautilus-extensions/nautilus-directory-async.c:
        (cancel_mime_list), (nautilus_directory_cancel),
        (set_up_request_by_file_attributes),
        (nautilus_directory_monitor_add_internal),
        (nautilus_async_destroying_file), (lacks_mime_list),
        (wants_mime_list), (request_is_satisfied),
        (nautilus_directory_invalidate_counts), (mime_list_one),
        (mime_list_callback), (mime_list_load), (mime_list_start),
        (start_or_stop_io):
        * libnautilus-extensions/nautilus-directory-private.h:
        * libnautilus-extensions/nautilus-file-attributes.h:
        * libnautilus-extensions/nautilus-file-private.h:
        * libnautilus-extensions/nautilus-file.c: (destroy),
        (nautilus_file_recompute_deep_counts),
        (nautilus_file_get_mime_list):
        * libnautilus-extensions/nautilus-file.h:

        Added mime-list support (can fetch the list of mime-types in the
        subdirs of a directory) for bug 3364.