Two small fixes which made _showNewStyleDialog() err out:
- g_key_file_load_from_data() expects a string as first
argument, but g_buffered_input_stream_peek_buffer()
returns an array of "data"
- g_key_file_load_from_data() is documented to allow -1 as
length parameter for \0-terminated strings, but the actual
type of the parameter is unsigned (d'uh)
https://bugzilla.gnome.org/show_bug.cgi?id=671556
bf428312d7