Question Spec 오타 수정
Question Model - user references 추가
Answer Model(content) 생성 & FactoryGirl, Spec 초기화
Answer Spec 반영
Answer 관계 추가 : Question
Answer Spec 추가 : Question 관계
Event model 생성 및 spec 작성.
Event #1 Model 생성 및 Spec 작성.
Merge branch 'master' of github.com:starville/rorla_api
Merge remote-tracking branch 'upstream/pr/60' into develop

Conflicts:
	spec/factories/questions.rb
Merge remote-tracking branch 'upstream/pr/61' into develop

Conflicts:
	db/schema.rb