Log Message:
Update py-flask-uploads to 0.2.0.

No changelog provided; includes several structural updates including the
switch from package to module, and a change in maintainer.

Backwards Compatibility
=======================
Version 0.2.0
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* The `patch_request_class` function was removed as it's unnecessary from
  Flask 0.6 onward.
* Filenames without extensions are no longer lowercased by `lowercase_ext`,
  only the extension is returned in lowercase, if an extension exists.