Merge pull request #1 from bayja/master

response code를 yield하도록 수정.
Merge pull request #3 from bayja/delete

Delete
version up to 0.0.9
resolve bug about authorization fail when uploading
Adding HTTP get method.
Adding some description to README.md
Adding is_authorized?
Adding exist? method
Merge pull request #6 from wanbok/master

서버에서 파일 가져오기, Authorized 여부 체크 추가 및 dotenv 적용
Add upload_from_blob
Merge pull request #7 from wanbok/master

Add upload_from_blob
Adding assinged response.code 200 fro Ucloud's way
Adding assinged response.code 200 fro Ucloud's way
Merge pull request #8 from wanbok/master

Adding assinged response.code 200 fro Ucloud's way
content_type 얻어올 때 외부 프로세스 호출하지 않도록 수정
version up to 0.0.12