DEFAULT_TOKENIZER import error in sacrebleu
{'login': 'idoh', 'id': 5303103, 'node_id': 'MDQ6VXNlcjUzMDMxMDM=', 'avatar_url': 'https://avatars.githubusercontent.com/u/5303103?v=4', 'gravatar_id': '', 'url': 'https://api.github.com/users/idoh', 'html_url': 'https://github.com/idoh', 'followers_url': 'https://api.github.com/users/idoh/followers', 'following_url': 'https://api.github.com/users/idoh/following{/other_user}', 'gists_url': 'https://api.github.com/users/idoh/gists{/gist_id}', 'starred_url': 'https://api.github.com/users/idoh/starred{/owner}{/repo}', 'subscriptions_url': 'https://api.github.com/users/idoh/subscriptions', 'organizations_url': 'https://api.github.com/users/idoh/orgs', 'repos_url': 'https://api.github.com/users/idoh/repos', 'events_url': 'https://api.github.com/users/idoh/events{/privacy}', 'received_events_url': 'https://api.github.com/users/idoh/received_events', 'type': 'User', 'site_admin': False}
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This issue was resolved by #447 
Latest Version 0.3.0

When loading the metric "sacrebleu" there is an import error due to the wrong path
![image](https://user-images.githubusercontent.com/5303103/88633063-2c5e5f00-d0bd-11ea-8ca8-4704dc975433.png)

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