Rename DiskDevice class to Image and move it to a seperate module.
Also, don't let the user access the os_type/* modules directly. In
Image class create the `os' member variable that will host an
appropriate instance of one of the OSBase classes.

The cow file when creating images or the temporary image file when
bundling the host system may be large. Allow the user to overwrite
the directory under which those files get created.

Make sure the user cannot select a directory as input media

This can be used to create an image out of a live system. This
functionality is not yet implemented.

This reverts commit 883e57b0.
Drop the greenlet support.

Needed by new kamaki, otherwise it throughs an exception at the end.

Create a new dialog_menu module to host all the "expert mode" code.
Check the code with a new version of pep8

Fix various typos in messages, add .gitignore file for
automatically produced intermediate files.

Every time you tried to reupload an image, the dialog displayed the
pithos url instead of the image filename as initial value.

The account info was saved in the token field in .kamakirc

Fix some typos and overwrite the yes/no labels of the wizard/expert
mode yesno dialog

Also move it to a separate module.

Logging can be enabled using the -l input option

A user can now create and upload an image using the wizard

The system does not perform anything yet when in wizard mode.

Create the new python module to host the aforementioned code.

If present in the kamaki configuration file, the user will read
the ~okeanos credentials using the kamaki config interface.
Whenever the user changes the ~okeanos credentians, the changes are
pushed back to kamaki.

Not fully implemented yet

Fixed many `E127 continuation line over-indented for visual indent'
errors

Before extracting an image or registring it with cyclades, the image
properties are populated with metadata concerning excluded deployment
tasks.

Inform the user about metadata changes performed during syspreps
execution or image shrinking.

Also fix various issues. snf-image-creator-dialog is almost ready.
Some `Help' entries are missing.

Also create a new output class (InfoBoxOutput) to be used when
performing syspreps

Populate Sysprep entry in "Image Customization Menu". Not fully
working.

Image properties manipulation works fine.

Extract and Register menu entries work fine.

snf-image-creator-dialog is a dialog based version of snf-image-creator
Nothing works yet