Allow an image to be read from a local file as an alternative to
stdin (which remains the default).
Change-Id: I81070ded9c505df7924c4efd5ae54cf3c0fa534d
Fields were missing from image-list that were present in the old index:
'Disk Format', 'Container Format', 'Size'
Change-Id: Ia86caec1938560c56292c0f3028ee48e774d0057