docker 네임스페이스 변경
Merge pull request #13 from seapy/master

docker 네임스페이스 변경
Question 링크 추가
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Merge branch 'qna-list_add_edit'
Dockerfile 에서 SECRECT_KEY_BASE 제거
mysql 사용을 위한 Dockerfile 수정
mysql2 gem 추가
Production DB 설정
Production DB 비밀번호 환경변수 변경
docker rake task 수정

- mysql docker 사용을 위한 설정으로 변경
README Docker 설명 변경
Merge pull request #17 from seapy/master

운영환경에서 MySQL 사용
Merge pull request #14 from plaredspear/master

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