Started script to build all_exercises_challenges.html.
Script creates base all_exercises_challenges.html file, in the proper location.
Slight improvements; ready to start scraping for exercises.
Finds appropriate place to start writing exercises.
Finds where each set of exercises begins.
Saving progress.
Merge branch 'master' of http://github.com/ehmatthes/intro_programming into all_exercise_page
Scrapes all exercise from var_num_string.html. Kind of ugly, though.