Birdhousebuilder-recipe-docker

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* added volume for etc/ in Dockerfile.

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* changed default ports, generate .env file for docker-compose

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* fix folder permissions of etc/ and var/run/ in Dockerfile.

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* update recipe to buildout deployment.
* simplified Dockerfile.
* removed custom.cfg template.

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* update readme.
* fixed settings and buildout-options.

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* fixed /data volume permissions.
* added update-user as default command.
* add buildout-options for docker.cfg.
* added default envs hostname and user.