Scraper of MIT Japanese course website.
run bundle to get and update all the necessary Ruby gems.
./scrape.rb -u <url>
The url should point to a course lesson listing under "Online Resources" of a
course. For example, MIT Japanese
502.
This will parse the html file specified by the url and save an xml file with the course name in the main folder and creates an "assets" folder that stores all the xml files for the drills and the audio and the image files.