Added pagination to the all_events view/template.
Add the ability to request all items.
Add tests for event pagination.
Tests functions have long names, but no docstring.
Merge pull request #57 from rbeagrie/paginate_events

Paginate events
requirements.txt: Store our requirements in a pip-installable file

https://pip.pypa.io/en/latest/user_guide.html#requirements-files
README.md: Mention 'make database' to use the redacted data
Defining constant `ITEMS_PER_PAGE` for pagination.

Instead of separate constants for paginating different views, use
one constant in `views.py` for pagination size.
Merge pull request #65 from wking/requirements

requirements.txt: Store our requirements in a pip-installable file
Merge pull request #69 from wking/flexible-db-initialization

README.md: Mention 'make database' to use the redacted data
Merge pull request #71 from gvwilson/defining-constant-for-pagination

Defining constant `ITEMS_PER_PAGE` for pagination.
Merge branch 'master' of github.com:swcarpentry/amy into notes