This option can be used to prefix each output line with a timestamp.

If --syslog option is passed to snf-mkimage or snf-image-creator, the
program will log its output to syslog too.

This resolves #42

Use stderr insteam of stream

This displays the registration info as returned by ./kamaki and gives
the user the option to save it in a file.

By default the output goes to sys.stdout. This is used in snf-mkimage
to output the plankton answer when registering an image to a synnefo
deployment.

This resolves #21

The base class is named Output. Having a method with the same makes
the code confusing.

Instead of defining a list member inside.

Fix a bug where the temporary file that would store the fatal error
in snf-image-creator is not deleted on normal exit.

When working with the dialog-based version of the program and a fatal
error occurs, create a temporary log file and put the full output of the
program there. This makes it easier for the user to determine what went
wrong.

This can be used to act on the original media instead of a device-mapper
snapshot.

This resolves #10

There is no need to associate a loop device with the input media if we
are not snapshotting the input media. The loop device is only needed in
order to use the media with the device-mapper.

 * Cleanup Wizard and WizardPage classes in dialog_wizard
 * Fix various pylint warnings

This attribute hosts the block device associated with this Disk
instance. This can be the original media if the source media is a block
device, a loop device of the original media if the original media is a
regular file or a loop device of a temporary object if the original
media is a directory.

Make it more general. Till know it was only used for selecting the input
media but other parts of the program should also make use of it.

According to the decision of the GRNET Board of Directors,
switch license to GPLv3.

This commit will be propagated to the release
and master branches based on git flow, and the next
release will be licensed as GPLv3.

If an exception that we don't know how to handle gets thrown, make sure
the traceback is always printed in the command line. If the output of
the program is also saved in a log file, then make sure the traceback
gets printed there too.

If a dialog widget exits in an abnormal way, we may end up having a
messed up terminal. Make sure that the terminal attributes are always
restored before the dialog-based version on snf-image-creator
terminates.

This can be used to perform various tests to determine if the media
is supported.

Add a new "Unsupported" os_type class. Images that get created from
unsupported media have the EXCLUDE_ALL_TASKS property enabled.

Works better this way in OpenSUSE

 * Change the authentication everywhere to use clouds
   (authentication URL and token pairs)
 * Add menu entries to manage clouds
 * Add an extra -a option in snf-image-creator to allow the user to
   specify authentication URLs

 * Prefix all private methods with _
 * Write missing docstrings
 * Move all public methods above the private ones
 * Add module docstrings where missing
 * Define source code encodings on all modules

If the image gets registered as public allow anyone to read the
metadata and the md5sum file.

If the ostype returned by libguestfs is valid and distro in unknown,
don't print the distro at all.

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.