docker/machine — pull request #197 by ehazlett (2015-01-01 05:23:38+00:00)
Title: refs #180: add option to migrate from an existing b2d instance

This adds a flag to import (copy) an existing boot2docker instance during creation of a virtualbox machine. Perhaps later, we can add the additional "magic" to do a full sweep of existing b2d instances as mentioned in #180.