Adding docstrings to models in crawled_webpages_app.
Resorting view imports in urls.py.
index.html: Updating links to static media. Adding quotes to url tag argument to make it compatible with Django 1.5.
Updating Bootstrap to version 2.3.1.
Changing label for ngram_size form field.
Removing unused imports in NB management command.
Updating dates in README.