Merge branch 'develop'

Finish new release version v0.2
Merge branch 'develop'

Preparing next release version
Merge branch 'develop'

End of chapter 8.
Site /users/:id/edit rendered
Support for unsuccessful edits of user profile
Support for edit user profile with valid data (testes)
Add before_filter logged_in_user
Security hole fixed; redirect to login path when not logged in user want to edit page
Redirect edit and update to root url when not logged in or loggen in as wrong user
Some refactoring + method correct_user? (better readability)
Implement friendly forwarding
Add index page to list all users (only for logged in users)
Seed database with Example User and 99 random users generated by Faker gem
Add pagination in users_path (list users in pages)
Add pagination integration test named: users_index_test
Partial refactoring
AddAdminToUsers migration with default admin attr set to false
Add delete links to users index page for administrative users
Test for destroying users and pagination
Merge branch 'updating-users'

Finish user edit, update, index, and destroy actions