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Release v0.7

Stratos Psomadakis suggested to shutdoen the helper VM using the `o'
Magic SsysRq key

Make sure that when the package is installed, the user gets informed
about the need to run snf-image-update-helper.

Make sure local variables are defined as local before they get assigned.
Having variables get defined and assigned in one line like this:

local var=foo

can sometimes cause problems. For example, this line:

local var=$(false)

will return 0 and the script will not fail if set -x is defined.

snf-image-update-helper will only install a pkg retrieved from the
apt unless -p option is specified.

The package should contain multistrap.conf and pinning.pref files.

This can be used to enable or disable the version check between
snf-image-host and snf-image-helper at the end of the update-helper
script.

Using package caches to create the helper image is dangerous now that
snf-image-helper is automatically retrieved.

Use squeeze instead of stable

The files hosted in this directory will be added in the
/etc/apt/preferences.d directory of the helper image before multistrap
runs.

AssignHostname task did not search for Unattend.xml in a case
insensitive way.

Make sure that if log_error is executed like this:

log_error "text" "text"

The 2 arguments get merged before being fed to the monitoring system.

In image helper, check if decode-properties.py returned 0 and log
the error if this is not the case.

If unattend.xml is present in the windows image, use this one unless
USE_DEFAULT_UNATTEND is specified as an image property.

If an error occurs, the temporary helper image under
/var/lib/snf-image-helper should be removed.

Conflicts:

	snf-image-host/snf-image-update-helper.in

Fix a bug where the helper will not send a image-helper-error msg
if an error occures when running snf-image-helper main script and
not one of the configuration tasks.

Conflicts:

	snf-image-helper/common.sh