add_tour() -> fix $file path to make subtituting <include/> tag with the actual file

when the script run for all the scenes
src/include/global -> Add crossdomain code
add_structure() -> Add scenes_dir variable
add_scenes_code_to_devel () -> Add \n to echo log
add_tour () and add_tour_clean () -> Big update

- Create tour_clean.xml using tour.xml rather than running add_tour() twice
- Remove all <preview> code lines but the ones for the 1st scene in each module and external module
add_tour_clean() -> Big update. Delete what I don't want from swfaddress plugin
start() -> Add add_html() to create a html file per module to use crossdomain