fixing typo in README
Moved user logic into a users controller. Refactored header into a single layout which is then used on every page.
Adding unit and spec tests

- Adding unit tests for the users_helper
- Adding spec tests for the Users pages and the About pages
- Refactoring the users_helper methods for clarity
Removing test code
Rewriting tests to use test data

- Rewrote tests so as to use test data not real data
- Adding test data