<commit_before>- Now includes Request, Adapter, and Transport mechanisms, making it a full-
  fledged HTTP library.

- Cookies and Headers are now represented by objects, not arrays.

- Modified for PSR-1 and 2 compliance.<commit_msg>update change log<commit_after>- [FIX] #11; scripts/instance.php now returns an instance.

- Update tests to use VfsStream and localhost (instead of actual files
  and example.com)

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{'dir': 'git-commits-cleaned', 'id': '7510045', 'n_tokens_mistral': 119, 'n_tokens_neox': 111, 'n_words': 53}