Djc-recipe

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- Added environment-variables support [Mikko Ohtamaa]

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- Fixed logging and added loglevel [Simone Deponti]

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- Fixed multiple link bug [Simone Deponti]

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- Added ability to symlink the static origin [Simone Deponti]

- Refactored working set computation to achieve better
performances [Simone Deponti]

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- Fixed encoding bug. [Simone Deponti]

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- Added new mail settings, restructured defaults. [Simone Deponti]

- Added support for multiple databases and new-style database settings.
[Simone Deponti]

- Fixed bugs in the tests and documentation. [Simone Deponti]