User models and migrations.
Add bcrypt.
Add password migrations and specs.
Update specs for more email validation.
Added gem
setup user factory.
Update cli option on guardfile.
Add user signup capability
Add SSL in production.
extras
Finish sign in
Merge branch 'sign-in-out'. Fix conflicts.

Conflicts:
	app/controllers/users_controller.rb
	app/views/layouts/application.html.erb
	spec/requests/user_pages_spec.rb