Plone.app.linkintegrity

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- Bugfixes & additional tests
[witsch]

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- No changes.

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- Integration of Plone's "delete confirmation" page
[witsch]

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- Fix tests in regard to changed `folder_contents` and unicode issues
[witsch]

- Updates to the monkey patch needed for five exceptions
[wiggy]

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- Bugfixes & other minor enhancements
[witsch]

- Eggification and move into plone.app namespace
[optilude]

- Proof of concept & initial version
[witsch]

- Initial package structure.
[zopeskel]