Plone.scale

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- Re-release to fix bad egg created for 1.2.1.
Refs http://dev.plone.org/plone/ticket/11154
[witsch]

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- Convert CMYK to RGB, allowing for web previews of print images.
[tomster]

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- Update package metadata.
[hannosch]

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- Abort if thumbnail behaviour is requested but either width or height is
missing. This is nicer than confronting the caller with a PIL exception.
[wichert]

- Rename the `keep` direction to `thumbnail` to make its behaviour more
intuitive, but accept `keep` for now.
[wichert]

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- Only pull in the uuid distribution in Python versions before 2.5.
[hannosch]

- Don't declare dependency on PIL.
[davisagli]

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- Add BSD license text following board decision:
http://lists.plone.org/pipermail/membership/2009-August/001038.html
[elro]

- Allow to use PIL's thumbnail algorithm to keep the present aspect ratio.
[spamsch, witsch]

- Allow to set the quality of the resulting image scales.
[witsch]

- Refactor storage adapter for image scales to be less dependent on the
underlying content type.
[witsch]