show name of reference (#35)
refactor #attach_reference_link. Use hash instead of Struct.new (#35)
remove needless comment
render :json is refactored with ActiveModel::Serializer
ProjectController#members is missing, added email to UserSerializer
#50 파일 삭제
#27 Remove unused code & #52 Set new url routing for user using nickname
Merge pull request #53 from DonutWorks/feat/show-name-of-reference

show name of reference (#35)
Merge pull request #54 from DonutWorks/refactor/as-json-with-serializer

Refactor/as json with serializer
Merge branch 'master' of https://github.com/DonutWorks/ToDo.nut into refactor/deprecrate-list_members

Conflicts:
	app/controllers/histories_controller.rb
	config/routes.rb