* Added the docker_volume module
* Code style fixes
* Added yours truly to the copyright statement
* Added documentation link
* Fixed YAML syntax in documentation string
* Documentation style fixes based on the code review
* Implemented requested code corrections
* Added documentation for the "labels" option
* Handled APIErrors from docker-py
* Fixed the type of the "labels" option (dict -> list)
* Fixed typo
* Import APIError from docker_common, not from docker-py