Updates the requirements on [@types/koa-router](https://github.com/DefinitelyTyped/DefinitelyTyped) to permit the latest version.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Updates the requirements on [@types/request](https://github.com/DefinitelyTyped/DefinitelyTyped) to permit the latest version.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Updates the requirements on [qrcode](https://github.com/soldair/node-qrcode) to permit the latest version.
- [Release notes](https://github.com/soldair/node-qrcode/releases)
- [Commits](https://github.com/soldair/node-qrcode/commits

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Updates the requirements on [typescript](https://github.com/Microsoft/TypeScript) to permit the latest version.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](https://github.com/Microsoft/TypeScript/commits/v3.1.6

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

multipart/formdata では文字列しか送れないっぽい？

* Twemojiで合字に対応

* split emoji regex

* Fix: url download

* not explicitly close on end

* resolve on stream finish

* remove unnecessary code

* reject on file error