facebookから画像、誕生日、性別をとってきて、誕生日から年齢を算出する
Merge branch 'master' of https://github.com/yudai-ushiro/six into facebook

Conflicts:
	app/controllers/users_controller.rb
	app/views/layouts/_header.html.erb
	app/views/relationships/new.html.erb
	app/views/shared/_user_info.html.erb
	db/schema.rb
Merge pull request #22 from yudai-ushiro/facebook

Facebook