blank admin page added. (#6)
#23 관리자가 직접 회원등록 할수있또록
basic auth added
Merge branch 'master' into feat/admin-page

Conflicts:
	app/views/devise/registrations/new.html.erb
	app/views/devise/sessions/new.html.erb
	config/routes.rb
Merge pull request #22 from DonutWorks/feat/admin-page

blank admin page added. (#6)