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* changed the name of nginx config file according to nginx_conf_file
* changed the name of supervisor config file according to supervisord_conf_file
* now upload supervisord_conf_file also in deploy task
* added supervisor_program_name configuration
* set nginx_client_max_body_size default to 10
* set requirements_file default to: join(env.code_root, 'requirements.txt')
* improved the feedback on _supervisor_restart
* updated README.rst about github repo
* backward compatible with 0.0.13