Buildout.eggscleaner

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- Bump version to fix previous release mess

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- Make eggscleaner run under windows
[anton-tagunov]

- Make eggscleaner work with latests buildout (2.2.1)
[anton-tagunov]

- Only run eggscleaner when eggs-directory is local
[thepjot]

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- Redid documentation
[thepjot]

- Added doctest
[thepjot]

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- Creation
[thepjot]