Skeleton CreateImage
Mostly working freeze-dry except that, for now, it's the 'suspend' action!

Should be written as a command plugin and named something else.
Adds 'freezedry' top level command
Merging from upstream master
Broke out 'images' into 'images list' and 'images create'
Removed freezedry
Merge pull request #74 from elight/freeze-dry

Freeze dry