Added FactoryGirl to the gemfile, in order to include factories for my specs.

Added show action to the users controller, in order for the profile page of a specific user to display appropriately. Created appropriate view for the same purpose.

Added spec to test out the users show action and view.

Defined a factory for :user, to allow the test suite to refer to :user in the users spec.

Configured test environment to minimise the amount of time Bcrypt was using to create a proper password digest.