* boards/dataset/misc.xml: added a tux image set with our tux images
	* src/boards/python/anim.py: commented out svg export code
	* src/gcompris/file_selector.c: (item_event_file_selector),
	(parseMime): fixed segfault on mime type
	* src/gcompris/images_selector.c: (read_dataset_directory): minor, now allow simlynks