##Download Coursera materials.
###Dependencies:
- Python 2.7 - for argparse
- Mechanize
- BeautifulSoup
###Format: python coursera.py <course> [-p part1 part2 ...] [-r row1 row2 ...] [-t {pdf ppt txt movie} {pdf ppt txt movie} ...]
- course - currently 'saas' or 'nlp' (it should also work with other courses, just add a new class with URL's overriden)
- parts - numbers starting from 1 of nessesary chapters (optional)
- rows - numbers starting from 1 of nessesary lectures (optional)
- types - types of resources to download (optional)