Answer assignment ruby 001 huyu

やはりどうも bundle exec rake pull_request を実行すると，エラーが発生します．

```
git push https://github.com/enfactv/assignment answer_assignment_ruby_001_huyu
Everything up-to-date
hub pull-request 'answer_assignment_ruby_001_huyu 11/13/13 01:50 ' -b enfactv:answers -h enfactv:answer_assignment_ruby_001_huyu
Error creating pull request: Unauthorized (HTTP 401)
```