Online-judge-tools

- [787](https://github.com/online-judge-tools/oj/pull/787) add a workaround for the conflict of a module name

- [783](https://github.com/online-judge-tools/oj/pull/783) remove a workaround for the conflict of a module name
- [784](https://github.com/online-judge-tools/oj/pull/784) fix an issue about opening webbrowsers under Windows Subsystem for Linux (helped by [orisano](https://github.com/orisano) and [southball](https://github.com/southball))
- [785](https://github.com/online-judge-tools/oj/pull/785) print the versions for user support

- [767](https://github.com/online-judge-tools/oj/pull/767) correct a message to recommend updating packages
- [766](https://github.com/online-judge-tools/oj/pull/766) clear the history of `oj download` when the `test/` directory is empty

- [759](https://github.com/online-judge-tools/oj/pull/759) fix the bug that processes remain running when Ctrl-C is pressed while `oj test` runs

- [online-judge-tools/api-client26](https://github.com/online-judge-tools/api-client/pull/26) [#757](https://github.com/online-judge-tools/oj/pull/757) fix the bug of the installation

- create the GitHub organization [online-judge-tools](https://github.com/online-judge-tools) so that projects will work even when [kmyk](https://github.com/kmyk) is missing
- Now [yosupo06](https://github.com/yosupo06) is an owner of the organization :dart:
- move the repository to [online-judge-tools/oj](https://github.com/online-judge-tools/oj)
- purge the library part as [online-judge-tools/api-client](https://github.com/online-judge-tools/api-client)