If launching the guestfs helper VM fails, the library will throw a
RuntimeError exception. Don't treat this as an unhandled exception.
Convert it to FatalError but preserve the error message.

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.

Remove the warning about having swapped the names of the snf-mkimage and
snf-image-creator executables. Keeping this warning for one major release
was enough.

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.

Add a short description of the program in the root page of the
documentation

Add instruction for importing the repository's GPG key before
installing the Debian packages

Conflicts:
	image_creator/version.py
	version

If the text was more lines that the height of the active region in the dialog
the 2 last lines were not displayed.

Those parameter can be used to control how many CPUs and how much RAM
the Windows VM should have during the configuration

Add missing input options

Make snf-image-creator be the dialog-based program and snf-mkimage be
the command line one.

Check the presence of the winexe executable at runtime only if the
input media is a Windows system

Make it work with Windows Server 2012 R2. The format of
shrink querymax command has changed.

Add KMS client setup keys for Windows Server 2012 R2 and Windows 8.1

In Linux when clearing out the account, remove the backup file:
/etc/shadow-

This allows us to add a Description field in register. This can be
used to update the DESCRIPTION image property

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.

Conflicts:
	image_creator/version.py
	version

Make sure to state that the host system in the "Create a new image"
example is a Debian Wheezy system. Most of the things work in every
distro, but some commands (e.g. kvm) may have a different name or
a slightly different functionality.