Create Model user, Passed spec tests
Create basic functionality for user registration, validate unique
username, create password confirmation functionality using bcrypt-ruby
Add gitignore DSstore
Added User model files
Add user controller
Made changes based off feedback
Finished making feedbacks off Chris's comments
Made whitespace consistent
Fix nitpicks
Merge branch 'user_registration'

Conflicts:
	db/migrate/20130610193047_create_users.rb
	db/schema.rb
	spec/controllers/articles_controller_spec.rb
	spec/models/user_spec.rb