All modules should use image_creator.FatalError exception to report
fatal errors.

The parameter order when calling guestfs.write was incorrect.

In the constructor only variable initialization is performed. This is
needed because the constructor is executed before the DiskDevice
instance is appended to the device list, and if something fails there,
then the resources may be cleaned up in an incorrect order.

* Add more userdata to be cleaned
* Prefix all data_cleanup methods with data_cleanup

This is used to prepare the media for image extraction. The main
difference from data_cleanup is that the tasks performed with this
method are mandatory in order to make the image workable.

Added the following sysprep methods for linux:
 * sysprep_acpid
 * sysprep_persistent_net_rules
 * sysprep_persistend_devs

This function will remove regular files under /var/cache

This will remove the persitent net udev rule.

This method replaces all non-persistent device appearances in fstab and
grub1 with UUIDs.

The package is buggy and we can use pbs to do the same thing.

This is needed to suppress the StopIteration exception

Not workable. Kamaki is not imported yet.

This fixes cases where a normal user tries to execute the program and
the program raises pbs.CommandNotFound exceptions because it tries to
import a command from sbin, which is not in the path.

Hooray! This is the first release that actually works!

This is done checking an Ubuntu image for the presence of
kubuntu-desktop package.

* Add foreach_file function in OSBase. This is used by all cleanup
  methods
* Add slackware class. This class derives from linux and overwrites the
  log cleanup behaviour. This is needed since slackware stores all
  package management info in /var/log/packages
* Add a shrink method in DiskDevice. This method shrinks the last
  filesystem to the minimum size
* Make the code style comply with pep8

Make the cow file sparse
Add method in Device to list the partitions
Add a "is bootable" flag in Device constructor