Vr.common

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Remove dependency to SetuptoolsVersion

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Make overlayfs configuration dependent on LXC

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Fixed ImportError in 'vr.common.balancer.varnish'.

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Moved project to Github.

Incorporated `project
skeleton from jaraco <https://github.com/jaraco/skeleton>`_.
Enabled automatic releases of tagged commits.

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Fix QueryResult iterability on Python 3.

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In models, allow parameters to be supplied when loading
entities.