Version 0.7

• Suppress most unexpected characters from temporary paths so as to minimise
  problems (scp uses, for example, the colon sign as a separator between the
  host and the path).
• Default is now to create and use a machine storage cache in the same directory
  as the main YAML cluster file. This is a breaking change, but eases project
  migration between machines. To revert to prior behaviour and keep using
  machinery on an existing cluster, use the global option -storage and set
  it to something like ~/.docker/machine, which is the default location for
  machine.
• Machine specification now takes a list of files specifications. These are
  formatted as the path to the source, possibly followed by a colon :
  character and the path to the destination; modelled after the volume mounting
  command of docker. These files (or directories) will be copied early in the
  initialisation process. They are meant to provide a quick way to initialise
  machines and ensure that they, for example, host all necessary secrets, ready
  to be mounted onto the containers running on those machines.
• Preliminary support for running from windows, using the
  DockerToolbox.
• Ability to use another machine as a cache for the storage of images before
  they are transmitted to the remote machines in the cluster. This is a
  breaking change as it modifies the semantics of the -cache global option
  (contains the name of the machine used for cache). This new behaviour is
  necessary for the windows port as the daemon runs within a machine created in
  VirtualBox.